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A297492
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a(n) = (1/2) * Sum_{|k|<=2*sqrt(p)} k^6*H(4*p-k^2) where H() is the Hurwitz class number and p is the n-th prime.
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4
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33, 308, 2874, 11528, 72060, 141218, 414918, 648260, 1394328, 3528690, 4608800, 9358298, 14113470, 17077148, 24378288, 39426858, 60555180, 69195410, 100714868, 127012680, 141942878, 194693840, 237229188, 313639470, 442561238, 520209690, 562658408, 655294428
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OFFSET
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1,1
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LINKS
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FORMULA
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Let b(n) = 5*n^4 - 9*n^2 - 5*n - 1.
a(n) = b(prime(n)).
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PROG
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(PARI) b(n) = 5*n^4 - 9*n^2 - 5*n - 1;
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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