p-INVERT of the positive integers, where p(S) = 1 - S^7.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =1a(7) =14a(8) =105a(9) =560a(10) =2380a(11) =8568a(12) =27132a(13) =77521a(14) =203518a(15) =497826a(16) =1148126a(17) =2527609a(18) =5401676a(19) =11508168a(20) =25437917a(21) =60978022a(22) =162008098a(23) =468103230a(24) =1409724358a(25) =4259541790a(26) =12617126893a(27) =36241765553a(28) =100599743538a(29) =269998374114