OFFSET
0,2
FORMULA
G.f.: 1/(1-x-2x/((1-x)^3-x/(1-x-x/((1-x)^3-x/(1-x-x/((1-x)^3-x/(1-... (continued fraction);
a(n)=sum{k=0..n, C(n+3k,n-k)*A000984(k)}.
Conjecture D-finite with recurrence: n*a(n) +3*(2-3n)*a(n-1) +2*(7n-13)*a(n-2)+2*(12-5n)*a(n-3) +(5n-16)*a(n-4) +(4-n)*a(n-5)=0. - R. J. Mathar, Nov 17 2011
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Jul 04 2009
STATUS
approved