A329585 - cp's OEIS frontend

A329585 Irregular triangle read by rows: representative solutions of the congruences x^2 - 1 == 0 (mod m) or (inclusive) x^2 + 1 == 0 (mod m), for m >= 1.

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	2
9	3
10	4
11	1
12	5
13	1
14	6
15	1
16	3
17	5
18	7
19	1
20	8
21	1
22	3
23	7
24	9
25	1
26	10
27	1
28	5
29	7
30	11
31	1
32	5
33	8
34	12
35	1
36	13
37	1
38	4
39	11
40	14
41	1
42	7
43	9
44	15
45	1
46	4
47	13
48	16
49	1
50	17
51	1
52	18
53	1
54	9
55	11
56	19

[0, 1, 1, 2, 1, 3, 1, 2, 3, 4, 1, 5, 1, 6, 1, 3, 5, 7, 1, 8, 1, 3, 7, 9, 1, 10, 1, 5, 7, 11, 1, 5, 8, 12, 1, 13, 1, 4, 11, 14, 1, 7, 9, 15, 1, 4, 13, 16, 1, 17, 1, 18, 1, 9, 11, 19]

cp's OEIS Frontend

A329585 Irregular triangle read by rows: representative solutions of the congruences x^2 - 1 == 0 (mod m) or (inclusive) x^2 + 1 == 0 (mod m), for m >= 1.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	2
9	3
10	4
11	1
12	5
13	1
14	6
15	1
16	3
17	5
18	7
19	1
20	8
21	1
22	3
23	7
24	9
25	1
26	10
27	1
28	5
29	7
30	11
31	1
32	5
33	8
34	12
35	1
36	13
37	1
38	4
39	11
40	14
41	1
42	7
43	9
44	15
45	1
46	4
47	13
48	16
49	1
50	17
51	1
52	18
53	1
54	9
55	11
56	19

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	2
9	3
10	4
11	1
12	5
13	1
14	6
15	1
16	3
17	5
18	7
19	1
20	8
21	1
22	3
23	7
24	9
25	1
26	10
27	1
28	5
29	7
30	11
31	1
32	5
33	8
34	12
35	1
36	13
37	1
38	4
39	11
40	14
41	1
42	7
43	9
44	15
45	1
46	4
47	13
48	16
49	1
50	17
51	1
52	18
53	1
54	9
55	11
56	19

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	2
9	3
10	4
11	1
12	5
13	1
14	6
15	1
16	3
17	5
18	7
19	1
20	8
21	1
22	3
23	7
24	9
25	1
26	10
27	1
28	5
29	7
30	11
31	1
32	5
33	8
34	12
35	1
36	13
37	1
38	4
39	11
40	14
41	1
42	7
43	9
44	15
45	1
46	4
47	13
48	16
49	1
50	17
51	1
52	18
53	1
54	9
55	11
56	19