Number of isoscent sequences of length n with exactly four descents.

A243477

Number of isoscent sequences of length n with exactly four descents.

Terms

    a(0) =1a(1) =98a(2) =2637a(3) =44051a(4) =563444a(5) =6054955a(6) =57523592a(7) =498540949a(8) =4024955854a(9) =30719216646a(10) =224034574434

External references