3251404800

Appears in sequences

• a(n) = product of factorials of digits of a(n-1).at n=6A034879
• a(n) = 2*(n!)^2.at n=8A048617
• a(n) = (-1)^(n+1) * 2^n * n!^2.at n=7A055546
• Size of the automorphism group of the group S_n x S_n (where S_n is the symmetric group).at n=7A063965
• Order of the subgroup of the symmetric group S_n generated by the cycles (1,3) and (1,2,3,...,n).at n=13A069660
• a(n) = 2(m!)^2 for n = 2m and m!(m+1)! for n = 2m+1.at n=16A092186
• Number of permutations of {1,2,...,n} with all odd entries preceding all even entries or all even entries preceding all odd entries.at n=16A152875
• Derived from von Mangoldt matrix sequence.at n=14A227866
• Number of permutations of length n that possess the maximal sum of distances between contiguous elements.at n=18A328378
• Number A(n,k) of n*(k+1)-step k-dimensional nonnegative closed lattice walks starting at the origin and using steps that increment all components or decrement one component by 1; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=47A340591