A381770 - cp's OEIS frontend

A381770 a(n) is the least k > 0 such that the factorial base expansion of k*n has digits in nonincreasing order.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	1
10	2
11	2
12	1
13	5
14	1
15	1
16	1
17	1
18	1
19	3
20	1
21	1
22	1
23	1
24	1
25	6
26	3
27	2
28	2
29	3
30	1
31	2
32	1
33	1
34	3
35	3
36	2
37	3
38	3
39	2
40	2
41	14
42	2
43	2
44	2
45	2
46	2
47	2
48	1
49	6
50	3
51	2
52	2
53	8
54	1
55	2
56	1
57	1
58	2
59	2
60	1
61	5
62	1
63	1
64	1
65	1
66	4
67	8
68	4
69	6
70	6
71	8
72	1
73	6
74	4
75	2
76	2
77	9
78	1
79	8
80	1
81	1
82	7
83	8
84	1
85	5
86	1

[1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 5, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 6, 3, 2, 2, 3, 1, 2, 1, 1, 3, 3, 2, 3, 3, 2, 2, 14, 2, 2, 2, 2, 2, 2, 1, 6, 3, 2, 2, 8, 1, 2, 1, 1, 2, 2, 1, 5, 1, 1, 1, 1, 4, 8, 4, 6, 6, 8, 1, 6, 4, 2, 2, 9, 1, 8, 1, 1, 7, 8, 1, 5, 1]

cp's OEIS Frontend

A381770 a(n) is the least k > 0 such that the factorial base expansion of k*n has digits in nonincreasing order.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	1
10	2
11	2
12	1
13	5
14	1
15	1
16	1
17	1
18	1
19	3
20	1
21	1
22	1
23	1
24	1
25	6
26	3
27	2
28	2
29	3
30	1
31	2
32	1
33	1
34	3
35	3
36	2
37	3
38	3
39	2
40	2
41	14
42	2
43	2
44	2
45	2
46	2
47	2
48	1
49	6
50	3
51	2
52	2
53	8
54	1
55	2
56	1
57	1
58	2
59	2
60	1
61	5
62	1
63	1
64	1
65	1
66	4
67	8
68	4
69	6
70	6
71	8
72	1
73	6
74	4
75	2
76	2
77	9
78	1
79	8
80	1
81	1
82	7
83	8
84	1
85	5
86	1

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	1
10	2
11	2
12	1
13	5
14	1
15	1
16	1
17	1
18	1
19	3
20	1
21	1
22	1
23	1
24	1
25	6
26	3
27	2
28	2
29	3
30	1
31	2
32	1
33	1
34	3
35	3
36	2
37	3
38	3
39	2
40	2
41	14
42	2
43	2
44	2
45	2
46	2
47	2
48	1
49	6
50	3
51	2
52	2
53	8
54	1
55	2
56	1
57	1
58	2
59	2
60	1
61	5
62	1
63	1
64	1
65	1
66	4
67	8
68	4
69	6
70	6
71	8
72	1
73	6
74	4
75	2
76	2
77	9
78	1
79	8
80	1
81	1
82	7
83	8
84	1
85	5
86	1

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	1
10	2
11	2
12	1
13	5
14	1
15	1
16	1
17	1
18	1
19	3
20	1
21	1
22	1
23	1
24	1
25	6
26	3
27	2
28	2
29	3
30	1
31	2
32	1
33	1
34	3
35	3
36	2
37	3
38	3
39	2
40	2
41	14
42	2
43	2
44	2
45	2
46	2
47	2
48	1
49	6
50	3
51	2
52	2
53	8
54	1
55	2
56	1
57	1
58	2
59	2
60	1
61	5
62	1
63	1
64	1
65	1
66	4
67	8
68	4
69	6
70	6
71	8
72	1
73	6
74	4
75	2
76	2
77	9
78	1
79	8
80	1
81	1
82	7
83	8
84	1
85	5
86	1