805036704
domain: N
Appears in sequences
- Number of {2,3}-regular graphs; i.e., labeled simple graphs (no multi-edges or loops) on n vertices, each of degree 2 or 3.at n=10A110040
- Number of n X n symmetric binary matrices with all row sums 7.at n=3A139674
- Number of 10 X 10 arrays of squares of integers, symmetric about main diagonal, with all rows summing to n.at n=3A156402