Number of varied unrooted labeled trees on n nodes, i.e., trees with unique vertex degree except for the leaves.

A274699

Number of varied unrooted labeled trees on n nodes, i.e., trees with unique vertex degree except for the leaves.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =4a(4) =65a(5) =126a(6) =637a(7) =21344a(8) =57465a(9) =330850a(10) =2023901a(11) =156312432a(12) =502733101a(13) =3464645380a(14) =21505493115a(15) =194182086016

External references