39552

Appears in sequences

• Ferromagnetic susceptibility series for f.c.c. lattice.at n=23A002924
• Triangle T(n,k) (n >= 2, 1 <= k <= n-1) giving number of non-crossing trees with n nodes and height k.at n=41A072248
• Number of subsets of {1..n} (including empty set) such that the pairwise LCMs of elements are all distinct.at n=20A196721
• a(n) = n*(5n^2 + 3n + 4) / 6.at n=36A203551
• a(n) = 4*n*(n^2 - 3*n - 1)/3.at n=32A275876
• Number of necklace permutations of {1..n} such that every positive integer from 1 to n * (n + 1)/2 is the sum of some circular subsequence.at n=10A325791