Number of rooted trees with n nodes such that no more than eight subtrees of the same size extend from the same node.

A318802

Number of rooted trees with n nodes such that no more than eight subtrees of the same size extend from the same node.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =2a(4) =4a(5) =9a(6) =20a(7) =48a(8) =115a(9) =286a(10) =718a(11) =1840a(12) =4761a(13) =12473a(14) =32938a(15) =87716a(16) =235119a(17) =634120a(18) =1719126a(19) =4682961a(20) =12810091a(21) =35176098a(22) =96925138a(23) =267912073a(24) =742665243a(25) =2064139425a(26) =5750927105a(27) =16058701943a(28) =44935012264a(29) =125978876147

External references