Number of 2n-node rooted trees whose height, number of leaves, and number of internal (non-leaf) nodes are all equal.

A358591

Number of 2n-node rooted trees whose height, number of leaves, and number of internal (non-leaf) nodes are all equal.

Terms

    a(0) =0a(1) =0a(2) =2a(3) =17a(4) =94a(5) =464a(6) =2162a(7) =9743a(8) =42962a(9) =186584a(10) =801316a(11) =3412034a(12) =14430740a(13) =60700548a(14) =254180426a(15) =1060361147a(16) =4409342954a(17) =18285098288a(18) =75645143516a(19) =312286595342

External references