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%I #5 Dec 19 2012 15:50:09
%S 23,31,40,53,68,86,109,135,167,203,244,292,345,406,473,547,630,720,
%T 820,928,1045,1173,1310,1459,1618,1788,1971,2165,2373,2593,2826,3074,
%U 3335,3612,3903,4209,4532,4870,5226,5598,5987,6395,6820,7265,7728,8210,8713,9235,9779,10343,10928,11536
%N a(n) = (d(n)-r(n))/5, where d = A026049 and r is the periodic sequence with fundamental period (4,1,4,0,1).
%F a(n)=(n + 7)*(2*n^2 + 13*n + 102)/30 - 1/5*(2 + ( - 1/5*5^(1/2) + 1)*cos(2*n*Pi/5) + (2/5*2^(1/2)*(5 - 5^(1/2))^(1/2))*sin(2*n*Pi/5) + (1/5*5^(1/2) + 1)*cos(4*n*Pi/5) + ( - 2/5*2^(1/2)*(5 + 5^(1/2))^(1/2))*sin(4*n*Pi/5)) [From _Richard Choulet_, Dec 14 2008]
%Y A152890 [From _Richard Choulet_, Dec 14 2008]
%K nonn
%O 7,1
%A _Clark Kimberling_
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