A341655 - cp's OEIS frontend

A341655 a(n) is the number of divisors of prime(n)^2 - 1.

n	a(n)
1	2
2	4
3	8
4	10
5	16
6	16
7	18
8	24
9	20
10	32
11	28
12	24
13	40
14	32
15	24
16	32
17	32
18	32
19	32
20	60
21	30
22	48
23	32
24	60
25	42
26	48
27	40
28	32
29	64
30	48
31	54
32	64
33	40
34	64
35	48
36	60
37	32
38	40
39	40
40	32
41	48
42	96
43	64
44	32
45	72
46	90
47	64
48	56
49	32
50	64
51	60
52	96
53	72
54	96
55	40
56	40
57	64
58	96
59	32
60	80
61	32
62	48
63	96
64	80
65	40
66	32

[2, 4, 8, 10, 16, 16, 18, 24, 20, 32, 28, 24, 40, 32, 24, 32, 32, 32, 32, 60, 30, 48, 32, 60, 42, 48, 40, 32, 64, 48, 54, 64, 40, 64, 48, 60, 32, 40, 40, 32, 48, 96, 64, 32, 72, 90, 64, 56, 32, 64, 60, 96, 72, 96, 40, 40, 64, 96, 32, 80, 32, 48, 96, 80, 40, 32]

cp's OEIS Frontend

A341655 a(n) is the number of divisors of prime(n)^2 - 1.

Table of values

List of values

n	a(n)
1	2
2	4
3	8
4	10
5	16
6	16
7	18
8	24
9	20
10	32
11	28
12	24
13	40
14	32
15	24
16	32
17	32
18	32
19	32
20	60
21	30
22	48
23	32
24	60
25	42
26	48
27	40
28	32
29	64
30	48
31	54
32	64
33	40
34	64
35	48
36	60
37	32
38	40
39	40
40	32
41	48
42	96
43	64
44	32
45	72
46	90
47	64
48	56
49	32
50	64
51	60
52	96
53	72
54	96
55	40
56	40
57	64
58	96
59	32
60	80
61	32
62	48
63	96
64	80
65	40
66	32

n	a(n)
1	2
2	4
3	8
4	10
5	16
6	16
7	18
8	24
9	20
10	32
11	28
12	24
13	40
14	32
15	24
16	32
17	32
18	32
19	32
20	60
21	30
22	48
23	32
24	60
25	42
26	48
27	40
28	32
29	64
30	48
31	54
32	64
33	40
34	64
35	48
36	60
37	32
38	40
39	40
40	32
41	48
42	96
43	64
44	32
45	72
46	90
47	64
48	56
49	32
50	64
51	60
52	96
53	72
54	96
55	40
56	40
57	64
58	96
59	32
60	80
61	32
62	48
63	96
64	80
65	40
66	32

n	a(n)
1	2
2	4
3	8
4	10
5	16
6	16
7	18
8	24
9	20
10	32
11	28
12	24
13	40
14	32
15	24
16	32
17	32
18	32
19	32
20	60
21	30
22	48
23	32
24	60
25	42
26	48
27	40
28	32
29	64
30	48
31	54
32	64
33	40
34	64
35	48
36	60
37	32
38	40
39	40
40	32
41	48
42	96
43	64
44	32
45	72
46	90
47	64
48	56
49	32
50	64
51	60
52	96
53	72
54	96
55	40
56	40
57	64
58	96
59	32
60	80
61	32
62	48
63	96
64	80
65	40
66	32