52648

Appears in sequences

• Catafusenes (see reference for precise definition).at n=9A044049
• Number of subsets of {1,2,3,...,n} whose sum is a square integer (including the empty subset).at n=20A126024
• Triangle read by rows: T(n,k) = (n-1)*T(n-1,k) + T(n-2,k), with T(n,n-1)=1, T(n,n-2)=n-2, for n >= 1, 0 <= k <= n-1.at n=48A228340
• Number of partitions of n such that (greatest part) + (least part) < number of parts.at n=46A237822
• Number of irreducible normal polynomials of degree n over GF(2) that are not primitive.at n=28A272033
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 497", based on the 5-celled von Neumann neighborhood.at n=7A272557