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%I #3 Mar 30 2012 18:36:49
%S 1,3,6,11,17,24,35,45,58,71,87,106,123,144,164,189,216,240,269,298,
%T 329,365,396,437,471,510,551,591,642,683,730,778,827,882,932,987,1048,
%U 1105,1165,1220,1289,1355,1418,1485,1549,1626,1699,1772,1846,1923,2002,2080
%N a(n) equals the (n*(n+1)/2)-th partial sum of the self-convolution of A010054, which has the g.f.: Sum_{n>=0} x^(n*(n+1)/2).
%F a(n) = [x^(n*(n+1)/2)] [Sum_{k>=0} x^(k*(k+1)/2)]^2/(1-x).
%o (PARI) {a(n)=local(X=x+x*O(x^(n*(n+1)/2))); polcoeff((eta(X^2)^2/eta(X))^2/(1-X),n*(n+1)/2)}
%Y Cf. A109414, A109415, A010054.
%K nonn
%O 0,2
%A _Paul D. Hanna_, Jun 27 2005
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