805036704

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