A345117 - cp's OEIS frontend

A345117 a(n) is the index (in Z/nZ) of the first already visited element in the process of moving around Z/nZ, starting at 0 with stride 1 and increasing stride by 1 after each step.

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

[0, 1, 0, 2, 1, 0, 3, 4, 1, 0, 10, 3, 2, 1, 0, 8, 11, 3, 17, 1, 0, 6, 9, 21, 3, 10, 1, 0, 4, 6, 12, 16, 3, 21, 1, 0, 5, 28, 6, 15, 26, 3, 38, 1, 0, 45, 18, 9, 6, 28, 15, 3, 7, 1, 0, 10, 21, 20, 52, 6, 8, 29, 3, 32, 1, 0, 59, 10, 36, 21, 27, 6, 46, 62, 3, 15, 1]

cp's OEIS Frontend

A345117 a(n) is the index (in Z/nZ) of the first already visited element in the process of moving around Z/nZ, starting at 0 with stride 1 and increasing stride by 1 after each step.

Table of values

List of values

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

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

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