p-INVERT of the positive integers, where p(S) = (1 - S)^6.

Terms

a(0) =6a(1) =33a(2) =158a(3) =696a(4) =2886a(5) =11425a(6) =43590a(7) =161355a(8) =582340a(9) =2056818a(10) =7130388a(11) =24319054a(12) =81757104a(13) =271353288a(14) =890327048a(15) =2891047695a(16) =9299683770a(17) =29658374355a(18) =93843661530a(19) =294791108106a(20) =919849034686