49483138

Appears in sequences

• Number of Hamiltonian cycles in P_8 X P_n.at n=8A145418
• Number of Hamiltonian cycles in P_9 X P_2n.at n=3A160149
• Number of Hamiltonian cycles on n X n+1 square grid of points.at n=6A222200
• 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=10A222201
• 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=34A321172