A306274 Number of unlabeled balanced rooted semi-identity trees with 2n-1 nodes and depth n.

1, 1, 1, 2, 3, 5, 8, 14, 22, 36, 59, 96, 156, 253, 410, 666, 1078, 1744, 2824, 4569, 7386, 11942, 19302, 31188, 50380, 81376, 131403, 212166, 342492, 552811, 892148, 1439619, 2322709, 3747152, 6044436, 9749175, 15723022, 25355115, 40884174, 65918823, 106274262

Offset: 1

Author

Alois P. Heinz, Feb 02 2019

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 1..400

Crossrefs

Cf. A306269.

Formula

a(n) = A306269(2n-1,n).