A335401 - cp's OEIS frontend

A335401 a(n) is the smallest positive number such that the decimal digits of n*a(n) are all 0, 1, 2 or 3.

n	a(n)
1	1
2	1
3	1
4	3
5	2
6	2
7	3
8	4
9	37
10	1
11	1
12	1
13	1
14	8
15	2
16	2
17	6
18	74
19	7
20	1
21	1
22	1
23	1
24	5
25	4
26	5
27	49
28	4
29	7
30	1
31	1
32	1
33	1
34	3
35	6
36	37
37	3
38	29
39	8
40	3
41	3
42	5
43	7
44	3
45	74
46	5
47	26
48	25
49	27
50	2
51	2
52	6
53	4
54	43
55	2
56	2
57	23
58	4
59	17
60	2
61	2
62	5
63	21
64	5
65	2
66	2
67	3
68	15
69	19
70	3
71	3
72	31
73	14
74	3
75	4
76	132
77	3
78	4
79	27
80	4
81	41

[1, 1, 1, 3, 2, 2, 3, 4, 37, 1, 1, 1, 1, 8, 2, 2, 6, 74, 7, 1, 1, 1, 1, 5, 4, 5, 49, 4, 7, 1, 1, 1, 1, 3, 6, 37, 3, 29, 8, 3, 3, 5, 7, 3, 74, 5, 26, 25, 27, 2, 2, 6, 4, 43, 2, 2, 23, 4, 17, 2, 2, 5, 21, 5, 2, 2, 3, 15, 19, 3, 3, 31, 14, 3, 4, 132, 3, 4, 27, 4, 41]

cp's OEIS Frontend

A335401 a(n) is the smallest positive number such that the decimal digits of n*a(n) are all 0, 1, 2 or 3.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	3
5	2
6	2
7	3
8	4
9	37
10	1
11	1
12	1
13	1
14	8
15	2
16	2
17	6
18	74
19	7
20	1
21	1
22	1
23	1
24	5
25	4
26	5
27	49
28	4
29	7
30	1
31	1
32	1
33	1
34	3
35	6
36	37
37	3
38	29
39	8
40	3
41	3
42	5
43	7
44	3
45	74
46	5
47	26
48	25
49	27
50	2
51	2
52	6
53	4
54	43
55	2
56	2
57	23
58	4
59	17
60	2
61	2
62	5
63	21
64	5
65	2
66	2
67	3
68	15
69	19
70	3
71	3
72	31
73	14
74	3
75	4
76	132
77	3
78	4
79	27
80	4
81	41

n	a(n)
1	1
2	1
3	1
4	3
5	2
6	2
7	3
8	4
9	37
10	1
11	1
12	1
13	1
14	8
15	2
16	2
17	6
18	74
19	7
20	1
21	1
22	1
23	1
24	5
25	4
26	5
27	49
28	4
29	7
30	1
31	1
32	1
33	1
34	3
35	6
36	37
37	3
38	29
39	8
40	3
41	3
42	5
43	7
44	3
45	74
46	5
47	26
48	25
49	27
50	2
51	2
52	6
53	4
54	43
55	2
56	2
57	23
58	4
59	17
60	2
61	2
62	5
63	21
64	5
65	2
66	2
67	3
68	15
69	19
70	3
71	3
72	31
73	14
74	3
75	4
76	132
77	3
78	4
79	27
80	4
81	41

n	a(n)
1	1
2	1
3	1
4	3
5	2
6	2
7	3
8	4
9	37
10	1
11	1
12	1
13	1
14	8
15	2
16	2
17	6
18	74
19	7
20	1
21	1
22	1
23	1
24	5
25	4
26	5
27	49
28	4
29	7
30	1
31	1
32	1
33	1
34	3
35	6
36	37
37	3
38	29
39	8
40	3
41	3
42	5
43	7
44	3
45	74
46	5
47	26
48	25
49	27
50	2
51	2
52	6
53	4
54	43
55	2
56	2
57	23
58	4
59	17
60	2
61	2
62	5
63	21
64	5
65	2
66	2
67	3
68	15
69	19
70	3
71	3
72	31
73	14
74	3
75	4
76	132
77	3
78	4
79	27
80	4
81	41