A330405 - cp's OEIS frontend

A330405 a(1) = 0; thereafter a(n) = (a(n-1)^2+1) mod n.

n	a(n)
1	0
2	1
3	2
4	1
5	2
6	5
7	5
8	2
9	5
10	6
11	4
12	5
13	0
14	1
15	2
16	5
17	9
18	10
19	6
20	17
21	17
22	4
23	17
24	2
25	5
26	0
27	1
28	2
29	5
30	26
31	26
32	5
33	26
34	31
35	17
36	2
37	5
38	26
39	14
40	37
41	17
42	38
43	26
44	17
45	20
46	33
47	9
48	34
49	30
50	1
51	2
52	5
53	26
54	29
55	17
56	10
57	44
58	23
59	58
60	5
61	26
62	57
63	37
64	26
65	27
66	4
67	17
68	18
69	49
70	22
71	59
72	26
73	20
74	31
75	62
76	45
77	24

[0, 1, 2, 1, 2, 5, 5, 2, 5, 6, 4, 5, 0, 1, 2, 5, 9, 10, 6, 17, 17, 4, 17, 2, 5, 0, 1, 2, 5, 26, 26, 5, 26, 31, 17, 2, 5, 26, 14, 37, 17, 38, 26, 17, 20, 33, 9, 34, 30, 1, 2, 5, 26, 29, 17, 10, 44, 23, 58, 5, 26, 57, 37, 26, 27, 4, 17, 18, 49, 22, 59, 26, 20, 31, 62, 45, 24]

cp's OEIS Frontend

A330405 a(1) = 0; thereafter a(n) = (a(n-1)^2+1) mod n.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	1
5	2
6	5
7	5
8	2
9	5
10	6
11	4
12	5
13	0
14	1
15	2
16	5
17	9
18	10
19	6
20	17
21	17
22	4
23	17
24	2
25	5
26	0
27	1
28	2
29	5
30	26
31	26
32	5
33	26
34	31
35	17
36	2
37	5
38	26
39	14
40	37
41	17
42	38
43	26
44	17
45	20
46	33
47	9
48	34
49	30
50	1
51	2
52	5
53	26
54	29
55	17
56	10
57	44
58	23
59	58
60	5
61	26
62	57
63	37
64	26
65	27
66	4
67	17
68	18
69	49
70	22
71	59
72	26
73	20
74	31
75	62
76	45
77	24

n	a(n)
1	0
2	1
3	2
4	1
5	2
6	5
7	5
8	2
9	5
10	6
11	4
12	5
13	0
14	1
15	2
16	5
17	9
18	10
19	6
20	17
21	17
22	4
23	17
24	2
25	5
26	0
27	1
28	2
29	5
30	26
31	26
32	5
33	26
34	31
35	17
36	2
37	5
38	26
39	14
40	37
41	17
42	38
43	26
44	17
45	20
46	33
47	9
48	34
49	30
50	1
51	2
52	5
53	26
54	29
55	17
56	10
57	44
58	23
59	58
60	5
61	26
62	57
63	37
64	26
65	27
66	4
67	17
68	18
69	49
70	22
71	59
72	26
73	20
74	31
75	62
76	45
77	24

n	a(n)
1	0
2	1
3	2
4	1
5	2
6	5
7	5
8	2
9	5
10	6
11	4
12	5
13	0
14	1
15	2
16	5
17	9
18	10
19	6
20	17
21	17
22	4
23	17
24	2
25	5
26	0
27	1
28	2
29	5
30	26
31	26
32	5
33	26
34	31
35	17
36	2
37	5
38	26
39	14
40	37
41	17
42	38
43	26
44	17
45	20
46	33
47	9
48	34
49	30
50	1
51	2
52	5
53	26
54	29
55	17
56	10
57	44
58	23
59	58
60	5
61	26
62	57
63	37
64	26
65	27
66	4
67	17
68	18
69	49
70	22
71	59
72	26
73	20
74	31
75	62
76	45
77	24