4638576

Appears in sequences

• Number of (undirected) Hamiltonian cycles on a 2n X 2n square grid of points.at n=3A003763
• Number of Hamiltonian circuits on 2n X 8 rectangle.at n=3A005391
• Number of Hamiltonian cycles in P_8 X P_n.at n=7A145418
• Write n=3i+j, 0<=j<3; a(n) = number of Hamiltonian cycles on square grid of points of size 2i+2 X 2i+2 (if j=0), 2i+2 X 2i+3 (j=1) or 2i+3 X 2i+4 (j=2).at n=9A222201
• Number of longest cycles in the n X n grid graph.at n=7A301648
• Triangle read by rows: T(m,n) = number of Hamiltonian cycles on m X n grid of points (m >= 2, 2 <= n <= m).at n=27A321172