a(n) = (1/2) * Sum_{|k|<=2*sqrt(p)} k^4*H(4*p-k^2) where H() is the Hurwitz class number and p is n-th prime.
A297491
a(n) = (1/2) * Sum_{|k|<=2*sqrt(p)} k^4*H(4*p-k^2) where H() is the Hurwitz class number and p is n-th prime.
Terms
- a(0) =9a(1) =44a(2) =234a(3) =664a(4) =2628a(5) =4354a(6) =9774a(7) =13660a(8) =24264a(9) =48690a(10) =59488a(11) =101194a(12) =137718a(13) =158884a(14) =207504a(15) =297594a(16) =410580a(17) =453778a(18) =601324a(19) =715608a(20) =777814a(21) =985840a(22) =1143324a(23) =1409670a(24) =1825054a(25) =2060298a(26) =2185144a(27) =2449764a(28) =2589730a(29) =2885454
External references
- oeis: A297491