53477376

Appears in sequences

• Number of (undirected) Hamiltonian paths in the 2n-crossed prism graph.at n=14A308136
• Smallest integer k whose sum of its distinct prime factors and bigomega(k) both equal n; or -1 if no such integer exists.at n=20A386605
• a(n) is the permanent of the symmetric n X n matrix M_n where M_n(j,k) = n for j = k, M_n(j,n) = n-j, M_n(n,k) = n-k, M_n(j,k) = 0 otherwise.at n=8A386974