Number of ascent sequences of length n with exactly seven flat steps.

A242160

Number of ascent sequences of length n with exactly seven flat steps.

Terms

    a(0) =1a(1) =8a(2) =72a(3) =600a(4) =5280a(5) =48312a(6) =465036a(7) =4708704a(8) =50160825a(9) =561623920a(10) =6600378928a(11) =81297463104

External references