Number of rooted trees with leaves of 2 colors where any 2 subtrees extending from the same node have a different number of nodes.

A032306

Number of rooted trees with leaves of 2 colors where any 2 subtrees extending from the same node have a different number of nodes.

Terms

    a(0) =2a(1) =2a(2) =2a(3) =6a(4) =10a(5) =26a(6) =66a(7) =174a(8) =442a(9) =1202a(10) =3298a(11) =9166a(12) =25674a(13) =72810a(14) =206826a(15) =595150a(16) =1712634a(17) =4978458a(18) =14494130a(19) =42502030a(20) =124660402a(21) =368221002a(22) =1087321354a(23) =3229266742a(24) =9591013738a(25) =28624735962a(26) =85404444970

External references