18818646
domain: N
Appears in sequences
- a(n) = binomial(n+5,5) * binomial(n+5,4)/(n+5).at n=19A006857
- a(n) = (n+1)^2*(n+2)^2*(n+3)^2*(n+4)/144.at n=20A108647
- Number of ways to place 3 nonattacking bishops on an n X n toroidal board.at n=22A177756
- Number of non-attacking placements of 3 rooks on an n X n board.at n=22A179058
- Number of minimum total dominating sets in the n X n rook complement graph.at n=22A303212