A282721 - cp's OEIS frontend

A282721 Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic residues mod p that are < p/2.

n	a(n)
1	1
2	13
3	32
4	137
5	306
6	314
7	555
8	876
9	1400
10	1416
11	1742
12	2450
13	3099
14	3788
15	4816
16	5430
17	6351
18	7344
19	8393
20	9546
21	12858
22	13373
23	15265
24	17277
25	16311
26	18403
27	19521
28	22344
29	21805
30	23590
31	25495
32	26805
33	30767
34	30863
35	31570
36	35980
37	40678
38	43946
39	45640
40	49124
41	50055
42	52776
43	58418
44	66210
45	71521
46	71665
47	83666
48	81628

[1, 13, 32, 137, 306, 314, 555, 876, 1400, 1416, 1742, 2450, 3099, 3788, 4816, 5430, 6351, 7344, 8393, 9546, 12858, 13373, 15265, 17277, 16311, 18403, 19521, 22344, 21805, 23590, 25495, 26805, 30767, 30863, 31570, 35980, 40678, 43946, 45640, 49124, 50055, 52776, 58418, 66210, 71521, 71665, 83666, 81628]

cp's OEIS Frontend

A282721 Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic residues mod p that are < p/2.

Table of values

List of values