A221861 - cp's OEIS frontend

A221861 The least number k that maximizes k! mod n.

n	a(n)
1	0
2	0
3	2
4	2
5	4
6	2
7	3
8	3
9	3
10	3
11	5
12	3
13	12
14	4
15	4
16	4
17	16
18	5
19	9
20	3
21	5
22	6
23	14
24	3
25	4
26	4
27	4
28	4
29	18
30	4
31	30
32	4
33	6
34	9
35	4
36	4
37	36
38	6
39	8
40	4
41	40
42	5
43	21
44	5
45	5
46	10
47	23
48	4
49	7
50	7
51	10
52	7
53	52
54	8
55	9
56	6
57	13
58	7
59	15
60	4
61	8
62	14
63	5
64	5
65	5
66	6
67	18
68	8
69	17
70	5
71	7
72	5
73	72
74	21
75	5
76	14
77	9
78	8
79	23
80	5

[0, 0, 2, 2, 4, 2, 3, 3, 3, 3, 5, 3, 12, 4, 4, 4, 16, 5, 9, 3, 5, 6, 14, 3, 4, 4, 4, 4, 18, 4, 30, 4, 6, 9, 4, 4, 36, 6, 8, 4, 40, 5, 21, 5, 5, 10, 23, 4, 7, 7, 10, 7, 52, 8, 9, 6, 13, 7, 15, 4, 8, 14, 5, 5, 5, 6, 18, 8, 17, 5, 7, 5, 72, 21, 5, 14, 9, 8, 23, 5]

cp's OEIS Frontend

A221861 The least number k that maximizes k! mod n.

Table of values

List of values

n	a(n)
1	0
2	0
3	2
4	2
5	4
6	2
7	3
8	3
9	3
10	3
11	5
12	3
13	12
14	4
15	4
16	4
17	16
18	5
19	9
20	3
21	5
22	6
23	14
24	3
25	4
26	4
27	4
28	4
29	18
30	4
31	30
32	4
33	6
34	9
35	4
36	4
37	36
38	6
39	8
40	4
41	40
42	5
43	21
44	5
45	5
46	10
47	23
48	4
49	7
50	7
51	10
52	7
53	52
54	8
55	9
56	6
57	13
58	7
59	15
60	4
61	8
62	14
63	5
64	5
65	5
66	6
67	18
68	8
69	17
70	5
71	7
72	5
73	72
74	21
75	5
76	14
77	9
78	8
79	23
80	5

n	a(n)
1	0
2	0
3	2
4	2
5	4
6	2
7	3
8	3
9	3
10	3
11	5
12	3
13	12
14	4
15	4
16	4
17	16
18	5
19	9
20	3
21	5
22	6
23	14
24	3
25	4
26	4
27	4
28	4
29	18
30	4
31	30
32	4
33	6
34	9
35	4
36	4
37	36
38	6
39	8
40	4
41	40
42	5
43	21
44	5
45	5
46	10
47	23
48	4
49	7
50	7
51	10
52	7
53	52
54	8
55	9
56	6
57	13
58	7
59	15
60	4
61	8
62	14
63	5
64	5
65	5
66	6
67	18
68	8
69	17
70	5
71	7
72	5
73	72
74	21
75	5
76	14
77	9
78	8
79	23
80	5

n	a(n)
1	0
2	0
3	2
4	2
5	4
6	2
7	3
8	3
9	3
10	3
11	5
12	3
13	12
14	4
15	4
16	4
17	16
18	5
19	9
20	3
21	5
22	6
23	14
24	3
25	4
26	4
27	4
28	4
29	18
30	4
31	30
32	4
33	6
34	9
35	4
36	4
37	36
38	6
39	8
40	4
41	40
42	5
43	21
44	5
45	5
46	10
47	23
48	4
49	7
50	7
51	10
52	7
53	52
54	8
55	9
56	6
57	13
58	7
59	15
60	4
61	8
62	14
63	5
64	5
65	5
66	6
67	18
68	8
69	17
70	5
71	7
72	5
73	72
74	21
75	5
76	14
77	9
78	8
79	23
80	5