41340

Appears in sequences

• Numbers n that raised to the powers from 1 to k (with k>=1) are multiple of the sum of their digits (n raised to k+1 must not be a multiple). Case k=9.at n=34A135194
• a(1)=1, a(n)=a(n-1)+n^3 if n odd, a(n)=a(n-1)+ n^0 if n is even.at n=23A140152
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (-1, 1, 0), (0, 0, 1), (1, 0, -1)}.at n=11A148292
• Triangle, read by rows, where row n equals the coefficients of y^k in R_{n-1}(y+y^2) for k=3..n, where R_n(y) is the n-th row polynomial in y for n>=3 with R_3(y)=y^3.at n=40A187120
• Number of pairs of intersecting diagonals in the exterior of a regular n-gon.at n=27A211381
• a(n) = n * A002445(n).at n=26A228838
• Indices where A092243 strictly changes sign.at n=9A269737
• Numbers k such that psi(k^2) = k, psi = A002322; indices of 1 in A341857.at n=37A341858
• Perimeters of more than one primitive 120-degree integer triangle.at n=34A350047