OFFSET
0,3
COMMENTS
The total number of nodes is 2n + 1. Trees are unrooted.
LINKS
Andrew Howroyd, Table of n, a(n) for n = 0..100
FORMULA
a(n) = A302939(2*n + 1, n).
CROSSREFS
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Jan 09 2020
STATUS
approved