A087122 - cp's OEIS frontend

A087122 a(n) is the number of non-congruent solutions to x^2*y^2 == 0 (mod n).

n	a(n)
1	1
2	3
3	5
4	12
5	9
6	15
7	13
8	32
9	45
10	27
11	21
12	60
13	25
14	39
15	45
16	128
17	33
18	135
19	37
20	108
21	65
22	63
23	45
24	160
25	225
26	75
27	189
28	156
29	57
30	135
31	61
32	320
33	105
34	99
35	117
36	540
37	73
38	111
39	125
40	288
41	81
42	195
43	85
44	252
45	405
46	135
47	93
48	640
49	637
50	675
51	165
52	300
53	105
54	567
55	189
56	416
57	185
58	171
59	117
60	540
61	121
62	183
63	585
64	1280
65	225
66	315
67	133
68	396
69	225
70	351

[1, 3, 5, 12, 9, 15, 13, 32, 45, 27, 21, 60, 25, 39, 45, 128, 33, 135, 37, 108, 65, 63, 45, 160, 225, 75, 189, 156, 57, 135, 61, 320, 105, 99, 117, 540, 73, 111, 125, 288, 81, 195, 85, 252, 405, 135, 93, 640, 637, 675, 165, 300, 105, 567, 189, 416, 185, 171, 117, 540, 121, 183, 585, 1280, 225, 315, 133, 396, 225, 351]

cp's OEIS Frontend

A087122 a(n) is the number of non-congruent solutions to x^2*y^2 == 0 (mod n).

Table of values

List of values