73560

Appears in sequences

• Number of basis partitions of n+36 with Durfee square size 6.at n=39A053801
• Triangular array giving number of labeled digraphs on n unisolated nodes and k=0..n*(n-1) arcs.at n=31A054547
• Number of 5-element nondividing subsets of {1, 2, ..., n}.at n=33A187492
• G.f. A(x) satisfies A(x) = 1 + x * A(x) / A(x^2).at n=52A218033
• E.g.f.: exp( Sum_{n>=1} (1+x)^(n^2) * x^n/n ).at n=6A227467
• Number of 3Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=20A302165