181440000

Appears in sequences

• Like A073327, but multiply the numerical values of the letters instead of adding them.at n=13A075831
• Generalized Stirling2 array (6,2).at n=17A091746
• Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k adjacent pairs of the form (even,even) (0<=k<=floor(n/2)-1).at n=34A145892
• Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k adjacent pairs of the form (even,even) (0<=k<=floor(n/2)-1).at n=35A145892
• Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k runs of even entries (n >= 2, 1 <= k <= floor(n/2)). For example, the permutation 321756498 has 3 runs of even entries: 2, 64 and 8.at n=32A152667
• Triangle read by rows: T(n,k) is the number of permutations of {1,2,...,n} having k runs of even entries (n >= 2, 1 <= k <= floor(n/2)). For example, the permutation 321756498 has 3 runs of even entries: 2, 64 and 8.at n=33A152667
• Triangle read by rows: terms T(n,k) of a binomial decomposition of n^n as Sum(k=0..n)T(n,k).at n=50A244121
• Least integers of their prime signature (A025487) whose average number of distinct prime factors of their divisors is an integer.at n=19A346015
• E.g.f. satisfies A(x) = exp(x^3 * (1 + x) * A(x)^3).at n=10A376493