Invitation: celebrating 50 years of OEIS, 250000 sequences, and Sloane's 75th, there will be a conference at DIMACS, Rutgers, Oct 9-10 2014.
1,7
Table of n, a(n) for n=1..31.
Index entries for sequences related to trees
G.f.: A(x) = B(x) + (C(x^2) - C(x)^2)/2. B(x) is g.f. of A106362. C(x) is g.f. of A106361.
Cf. A002995.
Sequence in context: A146936 A184264 A146155 * A128658 A234042 A001203
Adjacent sequences: A106360 A106361 A106362 * A106364 A106365 A106366
nonn
Christian G. Bower, Apr 29 2005
approved