284089
domain: N
Appears in sequences
- Squares that are the sum of 3 consecutive primes.at n=17A080665
- Expansion of x*(1+8*x)/((1-8*x)*(1+11*x+64*x^2)).at n=6A112259
- 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, 1, -1), (0, 0, -1), (0, 1, 1), (1, -1, 1)}.at n=11A148851
- Numbers n such that max(tau(n),tau(n+1),tau(n+2))- min(tau(n),tau(n+1),tau(n+2)) = 1.at n=34A173149
- Number of subsets of {1,2,...,n-10} without differences equal to 2, 4, 6, 8 or 10.at n=56A224812
- Square array T(n,k), n >= 1, k >= 1, read by antidiagonals, where T(n,k) = sqrt( Product_{a=1..n-1} Product_{b=1..k-1} (4*sin(a*Pi/n)^2 + 4*cos(b*Pi/k)^2) ).at n=48A340561