A197928 - cp's OEIS frontend

A197928 Number of pairs of integers i,j with 1<=i<=n, 1<=j<=i, such that i^2-j^2 = i*j (mod n).

n	a(n)
1	1
2	1
3	1
4	3
5	3
6	1
7	1
8	3
9	6
10	3
11	11
12	3
13	1
14	1
15	3
16	10
17	1
18	6
19	19
20	11
21	1
22	11
23	1
24	3
25	15
26	1
27	6
28	3
29	29
30	3
31	31
32	10
33	11
34	1
35	3
36	21
37	1
38	19
39	1
40	11
41	41
42	1
43	1
44	43
45	24
46	1
47	1
48	10
49	28
50	15
51	1
52	3
53	1
54	6
55	53
56	3
57	19
58	29
59	59
60	11
61	61
62	31
63	6
64	36
65	3
66	11
67	1
68	3
69	1
70	3
71	71
72	21
73	1
74	1
75	15
76	75
77	11
78	1
79	79
80	42
81	45
82	41
83	1
84	3
85	3
86	1
87	29
88	43
89	89
90	24
91	1
92	3
93	31
94	1
95	93
96	10
97	1
98	28
99	96
100	55
101	101
102	1
103	1
104	3
105	3

[1, 1, 1, 3, 3, 1, 1, 3, 6, 3, 11, 3, 1, 1, 3, 10, 1, 6, 19, 11, 1, 11, 1, 3, 15, 1, 6, 3, 29, 3, 31, 10, 11, 1, 3, 21, 1, 19, 1, 11, 41, 1, 1, 43, 24, 1, 1, 10, 28, 15, 1, 3, 1, 6, 53, 3, 19, 29, 59, 11, 61, 31, 6, 36, 3, 11, 1, 3, 1, 3, 71, 21, 1, 1, 15, 75, 11, 1, 79, 42, 45, 41, 1, 3, 3, 1, 29, 43, 89, 24, 1, 3, 31, 1, 93, 10, 1, 28, 96, 55, 101, 1, 1, 3, 3]

cp's OEIS Frontend

A197928 Number of pairs of integers i,j with 1<=i<=n, 1<=j<=i, such that i^2-j^2 = i*j (mod n).

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	3
5	3
6	1
7	1
8	3
9	6
10	3
11	11
12	3
13	1
14	1
15	3
16	10
17	1
18	6
19	19
20	11
21	1
22	11
23	1
24	3
25	15
26	1
27	6
28	3
29	29
30	3
31	31
32	10
33	11
34	1
35	3
36	21
37	1
38	19
39	1
40	11
41	41
42	1
43	1
44	43
45	24
46	1
47	1
48	10
49	28
50	15
51	1
52	3
53	1
54	6
55	53
56	3
57	19
58	29
59	59
60	11
61	61
62	31
63	6
64	36
65	3
66	11
67	1
68	3
69	1
70	3
71	71
72	21
73	1
74	1
75	15
76	75
77	11
78	1
79	79
80	42
81	45
82	41
83	1
84	3
85	3
86	1
87	29
88	43
89	89
90	24
91	1
92	3
93	31
94	1
95	93
96	10
97	1
98	28
99	96
100	55
101	101
102	1
103	1
104	3
105	3

n	a(n)
1	1
2	1
3	1
4	3
5	3
6	1
7	1
8	3
9	6
10	3
11	11
12	3
13	1
14	1
15	3
16	10
17	1
18	6
19	19
20	11
21	1
22	11
23	1
24	3
25	15
26	1
27	6
28	3
29	29
30	3
31	31
32	10
33	11
34	1
35	3
36	21
37	1
38	19
39	1
40	11
41	41
42	1
43	1
44	43
45	24
46	1
47	1
48	10
49	28
50	15
51	1
52	3
53	1
54	6
55	53
56	3
57	19
58	29
59	59
60	11
61	61
62	31
63	6
64	36
65	3
66	11
67	1
68	3
69	1
70	3
71	71
72	21
73	1
74	1
75	15
76	75
77	11
78	1
79	79
80	42
81	45
82	41
83	1
84	3
85	3
86	1
87	29
88	43
89	89
90	24
91	1
92	3
93	31
94	1
95	93
96	10
97	1
98	28
99	96
100	55
101	101
102	1
103	1
104	3
105	3

n	a(n)
1	1
2	1
3	1
4	3
5	3
6	1
7	1
8	3
9	6
10	3
11	11
12	3
13	1
14	1
15	3
16	10
17	1
18	6
19	19
20	11
21	1
22	11
23	1
24	3
25	15
26	1
27	6
28	3
29	29
30	3
31	31
32	10
33	11
34	1
35	3
36	21
37	1
38	19
39	1
40	11
41	41
42	1
43	1
44	43
45	24
46	1
47	1
48	10
49	28
50	15
51	1
52	3
53	1
54	6
55	53
56	3
57	19
58	29
59	59
60	11
61	61
62	31
63	6
64	36
65	3
66	11
67	1
68	3
69	1
70	3
71	71
72	21
73	1
74	1
75	15
76	75
77	11
78	1
79	79
80	42
81	45
82	41
83	1
84	3
85	3
86	1
87	29
88	43
89	89
90	24
91	1
92	3
93	31
94	1
95	93
96	10
97	1
98	28
99	96
100	55
101	101
102	1
103	1
104	3
105	3