A383066 - cp's OEIS frontend

A383066 A 2-regular sequence associated with the number of divisors of n^2 + 1 (A193432).

n	a(n)
1	0
2	1
3	1
4	2
5	3
6	3
7	2
8	3
9	7
10	8
11	5
12	5
13	8
14	7
15	3
16	4
17	13
18	17
19	12
20	13
21	21
22	18
23	7
24	7
25	18
26	21
27	13
28	12
29	17
30	13
31	4
32	5
33	21
34	30
35	23
36	27
37	46
38	41
39	17
40	18
41	47
42	55
43	34
44	31
45	43
46	32
47	9
48	9
49	32
50	43
51	31
52	34
53	55
54	47
55	18
56	17
57	41
58	46
59	27
60	23
61	30
62	21
63	5
64	6
65	31
66	47
67	38
68	47
69	83
70	76
71	33

[0, 1, 1, 2, 3, 3, 2, 3, 7, 8, 5, 5, 8, 7, 3, 4, 13, 17, 12, 13, 21, 18, 7, 7, 18, 21, 13, 12, 17, 13, 4, 5, 21, 30, 23, 27, 46, 41, 17, 18, 47, 55, 34, 31, 43, 32, 9, 9, 32, 43, 31, 34, 55, 47, 18, 17, 41, 46, 27, 23, 30, 21, 5, 6, 31, 47, 38, 47, 83, 76, 33]

cp's OEIS Frontend

A383066 A 2-regular sequence associated with the number of divisors of n^2 + 1 (A193432).

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	2
5	3
6	3
7	2
8	3
9	7
10	8
11	5
12	5
13	8
14	7
15	3
16	4
17	13
18	17
19	12
20	13
21	21
22	18
23	7
24	7
25	18
26	21
27	13
28	12
29	17
30	13
31	4
32	5
33	21
34	30
35	23
36	27
37	46
38	41
39	17
40	18
41	47
42	55
43	34
44	31
45	43
46	32
47	9
48	9
49	32
50	43
51	31
52	34
53	55
54	47
55	18
56	17
57	41
58	46
59	27
60	23
61	30
62	21
63	5
64	6
65	31
66	47
67	38
68	47
69	83
70	76
71	33

n	a(n)
1	0
2	1
3	1
4	2
5	3
6	3
7	2
8	3
9	7
10	8
11	5
12	5
13	8
14	7
15	3
16	4
17	13
18	17
19	12
20	13
21	21
22	18
23	7
24	7
25	18
26	21
27	13
28	12
29	17
30	13
31	4
32	5
33	21
34	30
35	23
36	27
37	46
38	41
39	17
40	18
41	47
42	55
43	34
44	31
45	43
46	32
47	9
48	9
49	32
50	43
51	31
52	34
53	55
54	47
55	18
56	17
57	41
58	46
59	27
60	23
61	30
62	21
63	5
64	6
65	31
66	47
67	38
68	47
69	83
70	76
71	33

n	a(n)
1	0
2	1
3	1
4	2
5	3
6	3
7	2
8	3
9	7
10	8
11	5
12	5
13	8
14	7
15	3
16	4
17	13
18	17
19	12
20	13
21	21
22	18
23	7
24	7
25	18
26	21
27	13
28	12
29	17
30	13
31	4
32	5
33	21
34	30
35	23
36	27
37	46
38	41
39	17
40	18
41	47
42	55
43	34
44	31
45	43
46	32
47	9
48	9
49	32
50	43
51	31
52	34
53	55
54	47
55	18
56	17
57	41
58	46
59	27
60	23
61	30
62	21
63	5
64	6
65	31
66	47
67	38
68	47
69	83
70	76
71	33