A116563 - cp's OEIS frontend

A116563 a(n) is the genus of the modular curve X_0(p) for p = prime(n).

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

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

cp's OEIS Frontend

A116563 a(n) is the genus of the modular curve X_0(p) for p = prime(n).

Table of values

List of values

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

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

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