Numbers of pattern-matching permutations of (1234) for the permutations of {1, 2, ..., n} on n = 4, 5, 6, ... elements.

A158005

Numbers of pattern-matching permutations of (1234) for the permutations of {1, 2, ..., n} on n = 4, 5, 6, ... elements.

Terms

    a(0) =1a(1) =17a(2) =207a(3) =2279a(4) =24553a(5) =268521a(6) =3042210a(7) =36153510a(8) =454208895a(9) =6059942223a(10) =86030083110

External references