Number of unlabeled rooted trees with n nodes where the multiplicities in the multiset of branches under any given node are distinct.

A316796

Number of unlabeled rooted trees with n nodes where the multiplicities in the multiset of branches under any given node are distinct.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =11a(6) =21a(7) =40a(8) =75a(9) =139a(10) =263a(11) =498a(12) =932a(13) =1761a(14) =3322a(15) =6244a(16) =11775a(17) =22204a(18) =41810a(19) =78795a(20) =148458a(21) =279690a(22) =527006a(23) =993033a(24) =1870881a(25) =3525109a(26) =6641904a(27) =12514243a(28) =23578708a(29) =44426222

External references