0,3

Partial sums of A129370.

G.f.: x(1+4x+5x^2+4x^3)/((1-x)(1-x^2)^3); a(n)=sum{k=floor((n+1)/2)..n, k^2};

Sequence in context: A093836 A000328 A100438 this_sequence A130230 A106931 A078370

Adjacent sequences: A129368 A129369 A129370 this_sequence A129372 A129373 A129374

easy,nonn

Paul Barry (pbarry(AT)wit.ie), Apr 11 2007