Number of nX5 nonnegative integer arrays each row and column an ascent sequence (interior element no greater than one plus up-steps preceding it) and the lower right element equal to min(n,5)-1.

A202732

Number of nX5 nonnegative integer arrays each row and column an ascent sequence (interior element no greater than one plus up-steps preceding it) and the lower right element equal to min(n,5)-1.

Terms

    a(0) =1a(1) =8a(2) =78a(3) =462a(4) =304a(5) =97794a(6) =12219684a(7) =1002070158a(8) =66418851994

External references