p-INVERT of the Fibonacci sequence (A000045), where p(S) = 1 - S^3.

Terms

a(0) =0a(1) =0a(2) =1a(3) =3a(4) =9a(5) =23a(6) =57a(7) =138a(8) =332a(9) =798a(10) =1920a(11) =4626a(12) =11157a(13) =26925a(14) =64997a(15) =156921a(16) =378861a(17) =914692a(18) =2208324a(19) =5331444a(20) =12871324a(21) =31074180a(22) =75019701a(23) =181113471a(24) =437246349a(25) =1055605659a(26) =2548456957a(27) =6152518758a(28) =14853493752a(29) =35859505946