OFFSET
1,3
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..40
Jean-François Alcover, Mathematica program
FORMULA
G.f.: B(x)/G(x) - (C(x^2) + C(x)^2)/2 where B(x) is the g.f. of A303829, G(x) is the g.f. of A000088 and C(x) is the g.f. of A126100. - Andrew Howroyd, May 03 2018
MATHEMATICA
(* See the links section. *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Brendan McKay, May 01 2018
EXTENSIONS
a(12)-a(18) from Andrew Howroyd, May 03 2018
STATUS
approved