126120
domain: N
Appears in sequences
- Array read by antidiagonals: T(n,m) is the number of Hamiltonian cycles in the rook graph K_n X K_m.at n=23A269562
- Array read by antidiagonals: T(n,m) is the number of Hamiltonian cycles in the rook graph K_n X K_m.at n=25A269562
- Number of Hamiltonian cycles in the 3 X n rook graph.at n=4A341498
- Expansion of e.g.f. 1/( (1 - x) * (1 + LambertW(-2*x)) ).at n=5A360596