p-INVERT of (1,1,1,1,1,...), where p(S) = 1 - 3 S^2 + 2 S^3.

Terms

a(0) =0a(1) =3a(2) =4a(3) =12a(4) =24a(5) =56a(6) =120a(7) =264a(8) =568a(9) =1224a(10) =2616a(11) =5576a(12) =11832a(13) =25032a(14) =52792a(15) =111048a(16) =233016a(17) =487880a(18) =1019448a(19) =2126280a(20) =4427320a(21) =9204168a(22) =19107384a(23) =39612872a(24) =82021944a(25) =169636296a(26) =350457400a(27) =723284424a(28) =1491308088a(29) =3072094664