Number of permutations of [n] having exactly 5 strong fixed blocks.

A225966

Number of permutations of [n] having exactly 5 strong fixed blocks.

Terms

    a(0) =1a(1) =17a(2) =187a(3) =1725a(4) =14770a(5) =123810a(6) =1049683a(7) =9201893a(8) =84765839a(9) =830632443a(10) =8737884632a(11) =99283914256

External references