A257161 - cp's OEIS frontend

A257161 The length of the period under Zagier-reduction of the principal indefinite quadratic binary form of discriminant D(n) = A079896(n).

n	a(n)
1	1
2	2
3	1
4	3
5	5
6	4
7	1
8	2
9	2
10	5
11	1
12	4
13	7
14	6
15	11
16	3
17	1
18	2
19	10
20	7
21	2
22	7
23	1
24	11
25	9
26	8
27	2
28	4
29	21
30	7
31	1
32	2
33	4
34	9
35	6
36	21
37	2
38	3
39	1
40	27
41	11
42	10
43	3
44	5
45	17
46	6
47	23
48	16
49	1
50	2
51	8
52	11
53	2
54	15
55	2
56	6
57	2
58	27
59	1

[1, 2, 1, 3, 5, 4, 1, 2, 2, 5, 1, 4, 7, 6, 11, 3, 1, 2, 10, 7, 2, 7, 1, 11, 9, 8, 2, 4, 21, 7, 1, 2, 4, 9, 6, 21, 2, 3, 1, 27, 11, 10, 3, 5, 17, 6, 23, 16, 1, 2, 8, 11, 2, 15, 2, 6, 2, 27, 1]

cp's OEIS Frontend

A257161 The length of the period under Zagier-reduction of the principal indefinite quadratic binary form of discriminant D(n) = A079896(n).

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	3
5	5
6	4
7	1
8	2
9	2
10	5
11	1
12	4
13	7
14	6
15	11
16	3
17	1
18	2
19	10
20	7
21	2
22	7
23	1
24	11
25	9
26	8
27	2
28	4
29	21
30	7
31	1
32	2
33	4
34	9
35	6
36	21
37	2
38	3
39	1
40	27
41	11
42	10
43	3
44	5
45	17
46	6
47	23
48	16
49	1
50	2
51	8
52	11
53	2
54	15
55	2
56	6
57	2
58	27
59	1

n	a(n)
1	1
2	2
3	1
4	3
5	5
6	4
7	1
8	2
9	2
10	5
11	1
12	4
13	7
14	6
15	11
16	3
17	1
18	2
19	10
20	7
21	2
22	7
23	1
24	11
25	9
26	8
27	2
28	4
29	21
30	7
31	1
32	2
33	4
34	9
35	6
36	21
37	2
38	3
39	1
40	27
41	11
42	10
43	3
44	5
45	17
46	6
47	23
48	16
49	1
50	2
51	8
52	11
53	2
54	15
55	2
56	6
57	2
58	27
59	1

n	a(n)
1	1
2	2
3	1
4	3
5	5
6	4
7	1
8	2
9	2
10	5
11	1
12	4
13	7
14	6
15	11
16	3
17	1
18	2
19	10
20	7
21	2
22	7
23	1
24	11
25	9
26	8
27	2
28	4
29	21
30	7
31	1
32	2
33	4
34	9
35	6
36	21
37	2
38	3
39	1
40	27
41	11
42	10
43	3
44	5
45	17
46	6
47	23
48	16
49	1
50	2
51	8
52	11
53	2
54	15
55	2
56	6
57	2
58	27
59	1