A284750 - cp's OEIS frontend

A284750 a(n) = least k > 0 such that k * n in factorial base representation contains only 0's and 1's.

n	a(n)
1	1
2	1
3	1
4	2
5	5
6	1
7	1
8	1
9	1
10	3
11	3
12	2
13	2
14	9
15	2
16	2
17	9
18	7
19	8
20	6
21	6
22	33
23	256
24	1
25	1
26	1
27	1
28	26
29	5
30	1
31	1
32	1
33	1
34	149
35	24
36	4
37	159
38	4
39	130
40	3
41	3
42	3
43	3
44	118
45	16
46	128
47	16
48	3
49	3
50	3
51	3
52	14
53	16
54	16
55	840
56	13
57	89
58	15
59	88
60	2
61	2
62	12
63	2
64	2
65	78
66	11
67	13
68	76
69	597
70	12
71	71
72	2
73	2
74	555
75	2

[1, 1, 1, 2, 5, 1, 1, 1, 1, 3, 3, 2, 2, 9, 2, 2, 9, 7, 8, 6, 6, 33, 256, 1, 1, 1, 1, 26, 5, 1, 1, 1, 1, 149, 24, 4, 159, 4, 130, 3, 3, 3, 3, 118, 16, 128, 16, 3, 3, 3, 3, 14, 16, 16, 840, 13, 89, 15, 88, 2, 2, 12, 2, 2, 78, 11, 13, 76, 597, 12, 71, 2, 2, 555, 2]

cp's OEIS Frontend

A284750 a(n) = least k > 0 such that k * n in factorial base representation contains only 0's and 1's.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	2
5	5
6	1
7	1
8	1
9	1
10	3
11	3
12	2
13	2
14	9
15	2
16	2
17	9
18	7
19	8
20	6
21	6
22	33
23	256
24	1
25	1
26	1
27	1
28	26
29	5
30	1
31	1
32	1
33	1
34	149
35	24
36	4
37	159
38	4
39	130
40	3
41	3
42	3
43	3
44	118
45	16
46	128
47	16
48	3
49	3
50	3
51	3
52	14
53	16
54	16
55	840
56	13
57	89
58	15
59	88
60	2
61	2
62	12
63	2
64	2
65	78
66	11
67	13
68	76
69	597
70	12
71	71
72	2
73	2
74	555
75	2

n	a(n)
1	1
2	1
3	1
4	2
5	5
6	1
7	1
8	1
9	1
10	3
11	3
12	2
13	2
14	9
15	2
16	2
17	9
18	7
19	8
20	6
21	6
22	33
23	256
24	1
25	1
26	1
27	1
28	26
29	5
30	1
31	1
32	1
33	1
34	149
35	24
36	4
37	159
38	4
39	130
40	3
41	3
42	3
43	3
44	118
45	16
46	128
47	16
48	3
49	3
50	3
51	3
52	14
53	16
54	16
55	840
56	13
57	89
58	15
59	88
60	2
61	2
62	12
63	2
64	2
65	78
66	11
67	13
68	76
69	597
70	12
71	71
72	2
73	2
74	555
75	2

n	a(n)
1	1
2	1
3	1
4	2
5	5
6	1
7	1
8	1
9	1
10	3
11	3
12	2
13	2
14	9
15	2
16	2
17	9
18	7
19	8
20	6
21	6
22	33
23	256
24	1
25	1
26	1
27	1
28	26
29	5
30	1
31	1
32	1
33	1
34	149
35	24
36	4
37	159
38	4
39	130
40	3
41	3
42	3
43	3
44	118
45	16
46	128
47	16
48	3
49	3
50	3
51	3
52	14
53	16
54	16
55	840
56	13
57	89
58	15
59	88
60	2
61	2
62	12
63	2
64	2
65	78
66	11
67	13
68	76
69	597
70	12
71	71
72	2
73	2
74	555
75	2