p-INVERT of (0,1,0,1,0,1,...), where p(S) = (1 - S - S^2)^2.

Terms

a(0) =2a(1) =5a(2) =12a(3) =30a(4) =70a(5) =166a(6) =382a(7) =881a(8) =2002a(9) =4540a(10) =10210a(11) =22891a(12) =51050a(13) =113506a(14) =251430a(15) =555466a(16) =1223680a(17) =2689591a(18) =5898290a(19) =12909880a(20) =28204178a(21) =61515521a(22) =133961048a(23) =291308806a(24) =632628710a(25) =1372170030a(26) =2972790738a(27) =6433570445a(28) =13909116418a(29) =30042364980