A007922 - cp's OEIS frontend

A007922 Smallest k such that k!! is a multiple of n.

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

[1, 2, 3, 4, 5, 6, 7, 4, 9, 10, 11, 6, 13, 14, 5, 6, 17, 12, 19, 10, 7, 22, 23, 6, 15, 26, 9, 14, 29, 10, 31, 8, 11, 34, 7, 12, 37, 38, 13, 10, 41, 14, 43, 22, 9, 46, 47, 6, 21, 20, 17, 26, 53, 18, 11, 14, 19, 58, 59, 10, 61, 62, 9, 8, 13, 22, 67, 34, 23, 14, 71, 12, 73, 74, 15, 38, 11, 26]

cp's OEIS Frontend

A007922 Smallest k such that k!! is a multiple of n.

Table of values

List of values

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

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

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