p-INVERT of (1,1,1,1,1,...), where p(S) = (1 - 2 S^2)^2.

Terms

a(0) =0a(1) =4a(2) =8a(3) =24a(4) =64a(5) =172a(6) =456a(7) =1200a(8) =3136a(9) =8148a(10) =21064a(11) =54216a(12) =139008a(13) =355196a(14) =904840a(15) =2298720a(16) =5825408a(17) =14729636a(18) =37168008a(19) =93612408a(20) =235369664a(21) =590852172a(22) =1481051720a(23) =3707411472a(24) =9268764096a(25) =23145174388a(26) =57732471752a(27) =143857070376a(28) =358113876352a(29) =890666303260