72576000

Appears in sequences

• a(n) = n!*n*(n-1)*(n-2)/36.at n=10A001810
• a(n) = 2*n*n!.at n=10A052582
• Scaled sums of squares.at n=6A060080
• Number of adjacent pairs of form (even,even) among all permutations of {1,2,...,n}.at n=10A077612
• Table T(n,m) read by rows: the coefficient of [t^n x^m] of 2*n!*(n+2)!*exp(x*t)*( t*(1-exp(t))-exp(t) ) / (1-exp(t) ), 0<=m<=n+1.at n=66A176990
• Number of non-attacking placements of 7 rooks on an n X n board.at n=9A179062
• Orders of groups in the Thompson chain of subgroups of the Conway simple group Co_1.at n=4A258704
• Number of minimum vertex colorings in the complement of the wheel graph on n nodes.at n=17A371208