A300307 - cp's OEIS frontend

A300307 Number of solutions to 1 +- 3 +- 6 +- ... +- n*(n+1)/2 == 0 mod n.

n	a(n)
1	1
2	2
3	0
4	4
5	4
6	16
7	12
8	32
9	20
10	112
11	88
12	384
13	308
14	1264
15	1056
16	4096
17	3852
18	15120
19	13820
20	52608
21	49824
22	190848
23	182356
24	704512
25	671540
26	2582128
27	2475220
28	9615744
29	9256428
30	35868672
31	34636840
32	134217728
33	130021392
34	505292976
35	491156304
36	1909836416
37	1857282536

[1, 2, 0, 4, 4, 16, 12, 32, 20, 112, 88, 384, 308, 1264, 1056, 4096, 3852, 15120, 13820, 52608, 49824, 190848, 182356, 704512, 671540, 2582128, 2475220, 9615744, 9256428, 35868672, 34636840, 134217728, 130021392, 505292976, 491156304, 1909836416, 1857282536]

cp's OEIS Frontend

A300307 Number of solutions to 1 +- 3 +- 6 +- ... +- n*(n+1)/2 == 0 mod n.

Table of values

List of values