p-INVERT of (1,0,1,0,0,0,0,...), where p(S) = (1 - S)^3.

Terms

a(0) =3a(1) =6a(2) =13a(3) =27a(4) =51a(5) =94a(6) =171a(7) =303a(8) =527a(9) =906a(10) =1539a(11) =2586a(12) =4308a(13) =7122a(14) =11692a(15) =19077a(16) =30957a(17) =49986a(18) =80349a(19) =128628a(20) =205146a(21) =326058a(22) =516594a(23) =816076a(24) =1285674a(25) =2020380a(26) =3167464a(27) =4954887a(28) =7734993a(29) =12051616