57520

Appears in sequences

• Number of permutations p of {1,...,n} such that exactly two elements of {p(1),...,p(i-1)} are between p(i) and p(i+1) for all i from 3 to n-1.at n=23A187817
• Terms of A005132 corresponding to the values in A330788.at n=19A330789
• a(n) is the number of distinct five-cuboid combinations filling n X n X n cube without allowing a cut spanning through the full cube in any of filling positions.at n=31A384743
• a(n) is the permanent of the Vandermonde matrix of the divisors of n.at n=7A389590
• a(n) is the permanent of the n X n Vandermonde matrix V(1, 2, ..., 2^(n-1)).at n=4A392327