"BFK" (reversible, size, unlabeled) transform of 2,2,2,2...

Terms

a(0) =1a(1) =2a(2) =2a(3) =6a(4) =6a(5) =10a(6) =34a(7) =38a(8) =62a(9) =90a(10) =306a(11) =334a(12) =574a(13) =794a(14) =1226a(15) =3390a(16) =4014a(17) =6370a(18) =9130a(19) =13598a(20) =18470a(21) =48114a(22) =55290a(23) =88966a(24) =123238a(25) =184178a(26) =245714a(27) =358710a(28) =771990a(29) =937210