23566

Appears in sequences

• Solid partitions of n, distinct along rows.at n=14A002936
• Numbers k in which the digits of k^2 appear.at n=34A029774
• Numbers k such that k^2 contains only digits {3,5,6}.at n=6A053944
• a(n) = Sum_{k=0..floor(n/6)} C(n-3k,3k) * 2^(n-6k).at n=13A100137
• a(0)=1. a(n) = a(n-1) + (sum of the earlier terms {among terms a(0) through a(n-1)} which are coprime to n).at n=16A127076
• Let P(A) be the power set of an n-element set A. Then a(n) = the number of pairs of elements {x,y} of P(A) for which either 0) x and y are intersecting but for which x is not a subset of y and y is not a subset of x, or 1) x = y.at n=8A134019
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 5 and 6.at n=45A136888
• Numbers k such that k and k^2 use only the digits 1, 2, 3, 5 and 6.at n=47A136974
• Numbers k such that k and k^2 use only the digits 2, 3, 4, 5 and 6.at n=16A137067
• Numbers k such that k and k^2 use only the digits 2, 3, 5 and 6.at n=5A137079
• Numbers k such that k and k^2 use only the digits 2, 3, 5, 6 and 7.at n=20A137080
• Numbers k such that k and k^2 use only the digits 2, 3, 5, 6 and 8.at n=10A137081
• Numbers k such that k and k^2 use only the digits 2, 3, 5, 6 and 9.at n=13A137082
• Numerator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=4.at n=2A145615
• a(n) = numerator of polynomial of genus 1 and level n for m = 4 = A[1,n](4).at n=6A145660
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 318", based on the 5-celled von Neumann neighborhood.at n=38A271252
• Partial sums of A033616.at n=36A299902
• Sum of distinct products i*j with 1 <= i, j <= n.at n=20A321165