Breadth-first-wise A014486-like encoding of A080299-trees.

Terms

a(0) =2a(1) =56a(2) =920a(3) =992a(4) =14744a(5) =14816a(6) =16256a(7) =15896a(8) =15968a(9) =235928a(10) =236000a(11) =237440a(12) =237080a(13) =237152a(14) =260120a(15) =260192a(16) =260480a(17) =254360a(18) =254432a(19) =261632a(20) =255872a(21) =255512a(22) =255584a(23) =3774872a(24) =3774944a(25) =3776384a(26) =3776024a(27) =3776096a(28) =3799064a(29) =3799136