19175140

Appears in sequences

• Number of n-bead necklaces with 4 colors.at n=14A001868
• An intermediate sequence for nonisomorphic circulant undirected p^2-graphs, indexed by odd primes p.at n=8A038783
• Number of necklaces with n beads of 5 colors, no 2 adjacent beads the same color.at n=13A106367
• Number of distinct n X 2 toroidal 0..3 arrays.at n=6A184273
• Table read by antidiagonals: T(n,k) = number of distinct n X k toroidal 0..3 arrays.at n=29A184277