104468

Appears in sequences

• Number of n-bead bracelets (turnover necklaces) with 12 red beads.at n=13A005516
• Number of connected unit interval graphs with n nodes; also number of bracelets (turnover necklaces) with n black beads and n-1 white beads.at n=12A007123
• Number of directed loopless multigraphs on 4 nodes with n arcs.at n=13A050930
• Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A069772.at n=12A089880
• a(n) = (n+1)*(n+2)^2*(n+3)*(n+4)*(3*n+5)/240.at n=12A114243
• Number of 2 X 2 matrices having all terms in {1,...,n} and positive odd determinant.at n=26A211068
• Number of 2 X 2 matrices having all terms in {-n,...,0,..,n} and positive odd determinant.at n=12A211158