Number of (unlabeled) rooted trees with n leaf nodes and without unary nodes such that the maximum of the node outdegrees equals seven.
A292233
Number of (unlabeled) rooted trees with n leaf nodes and without unary nodes such that the maximum of the node outdegrees equals seven.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =23a(4) =78a(5) =262a(6) =892a(7) =3034a(8) =10379a(9) =35581a(10) =122338a(11) =421498a(12) =1455216a(13) =5032559a(14) =17431384a(15) =60460263a(16) =209967105a(17) =729996715a(18) =2540602259a(19) =8850326207a(20) =30857134567a(21) =107670278671a(22) =375970664930
External references
- oeis: A292233