One day, one decomposition
A236119: Primes p with prime(p) - p - 1 and prime(p) - p + 1 both prime

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A236119.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A236119.html

One day, one decomposition
A235592: Numbers k such that k*(k+1) - prime(k) is prime

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A235592.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A235592.html

One day, one decomposition
A235034: Numbers whose prime divisors, when multiplied together without carry-bits (as encodings of GF(2)[X]-polynomials, with A048720), produce the original number; numbers for which A234741(n) = n

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A235034.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A235034.html

One day, one decomposition
A233010: In balanced ternary notation, either a palindrome or becomes a palindrome if trailing 0's are omitted

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A233010.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A233010.html

One day, one decomposition
A230853: Numbers n such that m + (sum of digits in base-3 representation of m) = n has exactly one solution

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A230853.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A230853.html

The generation of prime numbers into weight × level + jump (animation - three.js)

Experimental for now (only natural and prime numbers) but soon this animation will be added to the 1000 sequences of my site.
https://decompwlj.com/exp-code/code-anim-prime.html
https://decompwlj.com/exp-code/code-anim-natural.html

One day, one decomposition
A230633: Numbers n such that m + (sum of digits in base-4 representation of m) = n has exactly one solution

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A230633.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A230633.html

One day, one decomposition
A230577: Positive integers that have exactly 6 odd divisors

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A230577.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A230577.html

One day, one decomposition
A230092: Numbers of the form k + wt(k) for exactly three distinct k, where wt(k) = A000120(k) is the binary weight of k

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A230092.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A230092.html

One day, one decomposition
A230091: Numbers of the form k + wt(k) for exactly two distinct k, where wt(k) = A000120(k) is the binary weight of k

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A230091.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A230091.html

One day, one decomposition
A230044: Nonnegative numbers k such that k plus a perfect square is a triangular number

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A230044.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A230044.html

One day, one decomposition
A227916: Primes that remain prime when the leftmost digit is removed

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A227916.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A227916.html

One day, one decomposition
A216838: Odd primes for which 2 is not a primitive root

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A216838.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A216838.html

One day, one decomposition
A215940: Difference between the n-th and the first (identity) permutation of (0,...,m-1), interpreted as a decimal number, divided by 9 (for any m for which 10! >= m! >= n)

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A215940.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A215940.html

One day, one decomposition
A214423: Numbers n palindromic in only one base b, 2 <= b <= 10

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A214423.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A214423.html

One day, one decomposition
A213382: Numbers n such that n^n mod (n + 2) = n

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A213382.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A213382.html

One day, one decomposition
A212166: Numbers k such that the maximum exponent in its prime factorization equals the number of positive exponents (A051903(k) = A001221(k))

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A212166.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A212166.html

One day, one decomposition
A210479: Primes p with p-1 and p+1 both practical: "Sandwich of the first kind"

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A210479.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A210479.html

One day, one decomposition
A209202: Values of the difference d for 3 primes in geometric-arithmetic progression with the minimal sequence {3*3^j + j*d}, j = 0 to 2

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A209202.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A209202.html

One day, one decomposition
A208177: Primes of the form 128*k + 1

3D graph, threejs - webGL https://decompwlj.com/3Dgraph/A208177.html
2D graph, first 500 terms https://decompwlj.com/2Dgraph500terms/A208177.html