cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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.

Table of values

n a(n)
1 9
2 44
3 234
4 664
5 2628
6 4354
7 9774
8 13660
9 24264
10 48690
11 59488
12 101194
13 137718
14 158884
15 207504
16 297594
17 410580
18 453778
19 601324
20 715608
21 777814
22 985840
23 1143324
24 1409670
25 1825054
26 2060298
27 2185144
28 2449764
29 2589730
30 2885454
31 4096384
32 4495788
33 5142294

List of values

[9, 44, 234, 664, 2628, 4354, 9774, 13660, 24264, 48690, 59488, 101194, 137718, 158884, 207504, 297594, 410580, 453778, 601324, 715608, 777814, 985840, 1143324, 1409670, 1825054, 2060298, 2185144, 2449764, 2589730, 2885454, 4096384, 4495788, 5142294]