A342992 - cp's OEIS frontend

A342992 Smallest k such that k*n contains only prime digits, or 0 if no such k exists.

n	a(n)
1	2
2	1
3	1
4	8
5	1
6	12
7	1
8	4
9	3
10	0
11	2
12	6
13	4
14	18
15	5
16	2
17	15
18	4
19	3
20	0
21	12
22	1
23	1
24	3
25	1
26	2
27	1
28	9
29	8
30	0
31	12
32	1
33	1
34	8
35	1
36	2
37	1
38	14
39	7
40	0
41	13
42	6
43	54
44	8
45	5
46	7
47	5
48	49
49	15
50	0
51	5
52	1
53	1
54	43
55	1
56	42
57	1
58	4
59	43
60	0
61	12
62	6
63	4
64	43
65	5
66	42
67	5
68	4
69	8
70	0
71	5
72	1
73	1
74	3
75	1
76	7
77	1
78	74
79	3
80	0
81	93

[2, 1, 1, 8, 1, 12, 1, 4, 3, 0, 2, 6, 4, 18, 5, 2, 15, 4, 3, 0, 12, 1, 1, 3, 1, 2, 1, 9, 8, 0, 12, 1, 1, 8, 1, 2, 1, 14, 7, 0, 13, 6, 54, 8, 5, 7, 5, 49, 15, 0, 5, 1, 1, 43, 1, 42, 1, 4, 43, 0, 12, 6, 4, 43, 5, 42, 5, 4, 8, 0, 5, 1, 1, 3, 1, 7, 1, 74, 3, 0, 93]

cp's OEIS Frontend

A342992 Smallest k such that k*n contains only prime digits, or 0 if no such k exists.

Table of values

List of values

n	a(n)
1	2
2	1
3	1
4	8
5	1
6	12
7	1
8	4
9	3
10	0
11	2
12	6
13	4
14	18
15	5
16	2
17	15
18	4
19	3
20	0
21	12
22	1
23	1
24	3
25	1
26	2
27	1
28	9
29	8
30	0
31	12
32	1
33	1
34	8
35	1
36	2
37	1
38	14
39	7
40	0
41	13
42	6
43	54
44	8
45	5
46	7
47	5
48	49
49	15
50	0
51	5
52	1
53	1
54	43
55	1
56	42
57	1
58	4
59	43
60	0
61	12
62	6
63	4
64	43
65	5
66	42
67	5
68	4
69	8
70	0
71	5
72	1
73	1
74	3
75	1
76	7
77	1
78	74
79	3
80	0
81	93

n	a(n)
1	2
2	1
3	1
4	8
5	1
6	12
7	1
8	4
9	3
10	0
11	2
12	6
13	4
14	18
15	5
16	2
17	15
18	4
19	3
20	0
21	12
22	1
23	1
24	3
25	1
26	2
27	1
28	9
29	8
30	0
31	12
32	1
33	1
34	8
35	1
36	2
37	1
38	14
39	7
40	0
41	13
42	6
43	54
44	8
45	5
46	7
47	5
48	49
49	15
50	0
51	5
52	1
53	1
54	43
55	1
56	42
57	1
58	4
59	43
60	0
61	12
62	6
63	4
64	43
65	5
66	42
67	5
68	4
69	8
70	0
71	5
72	1
73	1
74	3
75	1
76	7
77	1
78	74
79	3
80	0
81	93

n	a(n)
1	2
2	1
3	1
4	8
5	1
6	12
7	1
8	4
9	3
10	0
11	2
12	6
13	4
14	18
15	5
16	2
17	15
18	4
19	3
20	0
21	12
22	1
23	1
24	3
25	1
26	2
27	1
28	9
29	8
30	0
31	12
32	1
33	1
34	8
35	1
36	2
37	1
38	14
39	7
40	0
41	13
42	6
43	54
44	8
45	5
46	7
47	5
48	49
49	15
50	0
51	5
52	1
53	1
54	43
55	1
56	42
57	1
58	4
59	43
60	0
61	12
62	6
63	4
64	43
65	5
66	42
67	5
68	4
69	8
70	0
71	5
72	1
73	1
74	3
75	1
76	7
77	1
78	74
79	3
80	0
81	93