p-INVERT of the positive integers, where p(S) = 1 - S^2 - S^3.

Terms

a(0) =0a(1) =1a(2) =5a(3) =17a(4) =51a(5) =149a(6) =439a(7) =1308a(8) =3916a(9) =11728a(10) =35093a(11) =104943a(12) =313773a(13) =938199a(14) =2805439a(15) =8389163a(16) =25086356a(17) =75016104a(18) =224321012a(19) =670787533a(20) =2005857561a(21) =5998122649a(22) =17936209267a(23) =53634716681a(24) =160384099011a(25) =479597177352