14529715200
domain: N
Appears in sequences
- a(n) = n!/6.at n=11A001715
- Number of labeled cyclic groups with n elements.at n=13A034381
- Number of labeled Abelian groups of order n.at n=13A034382
- Number of labeled rooted trees where each node at height h has 0 or h+1 children.at n=15A075533
- a(1) = a(2) = 1; for n >= 2, a(n) is the product of number k <= n such that GCQ_A(n, k) >= 2 (see definition in comments).at n=13A196442
- Number of 9-ary heaps on n elements.at n=15A273696
- Solution of the complementary equation a(n) = a(n-1)*b(n-2), where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4.at n=12A294381
- Number of symmetric n X n 01-matrices with maximum number of 1s and no 2 X 2 all-1 submatrix.at n=14A352801