A380827 - cp's OEIS frontend

A380827 Least integer k such that the multiplicative group modulo n is a subgroup of the symmetric group S_k.

n	a(n)
1	1
2	1
3	2
4	2
5	4
6	2
7	5
8	4
9	5
10	4
11	7
12	4
13	7
14	5
15	6
16	6
17	16
18	5
19	11
20	6
21	7
22	7
23	13
24	6
25	9
26	7
27	11
28	7
29	11
30	6
31	10
32	10
33	9
34	16
35	9
36	7
37	13
38	11
39	9
40	8
41	13
42	7
43	12
44	9
45	9
46	13
47	25
48	8
49	12
50	9
51	18
52	9
53	17
54	11
55	11
56	9
57	13
58	11
59	31
60	8
61	12
62	10
63	10
64	18
65	11
66	9
67	16
68	18
69	15
70	9
71	14
72	9
73	17
74	13
75	11
76	13
77	12
78	9
79	18
80	10
81	29

[1, 1, 2, 2, 4, 2, 5, 4, 5, 4, 7, 4, 7, 5, 6, 6, 16, 5, 11, 6, 7, 7, 13, 6, 9, 7, 11, 7, 11, 6, 10, 10, 9, 16, 9, 7, 13, 11, 9, 8, 13, 7, 12, 9, 9, 13, 25, 8, 12, 9, 18, 9, 17, 11, 11, 9, 13, 11, 31, 8, 12, 10, 10, 18, 11, 9, 16, 18, 15, 9, 14, 9, 17, 13, 11, 13, 12, 9, 18, 10, 29]

cp's OEIS Frontend

A380827 Least integer k such that the multiplicative group modulo n is a subgroup of the symmetric group S_k.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	2
5	4
6	2
7	5
8	4
9	5
10	4
11	7
12	4
13	7
14	5
15	6
16	6
17	16
18	5
19	11
20	6
21	7
22	7
23	13
24	6
25	9
26	7
27	11
28	7
29	11
30	6
31	10
32	10
33	9
34	16
35	9
36	7
37	13
38	11
39	9
40	8
41	13
42	7
43	12
44	9
45	9
46	13
47	25
48	8
49	12
50	9
51	18
52	9
53	17
54	11
55	11
56	9
57	13
58	11
59	31
60	8
61	12
62	10
63	10
64	18
65	11
66	9
67	16
68	18
69	15
70	9
71	14
72	9
73	17
74	13
75	11
76	13
77	12
78	9
79	18
80	10
81	29

n	a(n)
1	1
2	1
3	2
4	2
5	4
6	2
7	5
8	4
9	5
10	4
11	7
12	4
13	7
14	5
15	6
16	6
17	16
18	5
19	11
20	6
21	7
22	7
23	13
24	6
25	9
26	7
27	11
28	7
29	11
30	6
31	10
32	10
33	9
34	16
35	9
36	7
37	13
38	11
39	9
40	8
41	13
42	7
43	12
44	9
45	9
46	13
47	25
48	8
49	12
50	9
51	18
52	9
53	17
54	11
55	11
56	9
57	13
58	11
59	31
60	8
61	12
62	10
63	10
64	18
65	11
66	9
67	16
68	18
69	15
70	9
71	14
72	9
73	17
74	13
75	11
76	13
77	12
78	9
79	18
80	10
81	29

n	a(n)
1	1
2	1
3	2
4	2
5	4
6	2
7	5
8	4
9	5
10	4
11	7
12	4
13	7
14	5
15	6
16	6
17	16
18	5
19	11
20	6
21	7
22	7
23	13
24	6
25	9
26	7
27	11
28	7
29	11
30	6
31	10
32	10
33	9
34	16
35	9
36	7
37	13
38	11
39	9
40	8
41	13
42	7
43	12
44	9
45	9
46	13
47	25
48	8
49	12
50	9
51	18
52	9
53	17
54	11
55	11
56	9
57	13
58	11
59	31
60	8
61	12
62	10
63	10
64	18
65	11
66	9
67	16
68	18
69	15
70	9
71	14
72	9
73	17
74	13
75	11
76	13
77	12
78	9
79	18
80	10
81	29