OFFSET
0,3
COMMENTS
Partial sums of A066660.
FORMULA
G.f.: (1/(1-x)) Sum_{k>0} x^k(1-x^(3k))/((1-x^k)(1-x^(2k))); a(n)=sum{k=1..n, tau(2k)}-n.
MATHEMATICA
CoefficientList[ Series[ Sum[x^k(1 - x^(3k))/((1 - x^k)(1 - x^(2k))), {k, 60}], {x, 0, 57}]/(1 - x), x]
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Oct 19 2005
EXTENSIONS
More terms from Robert G. Wilson v, Oct 21 2005
STATUS
approved