A382177 - cp's OEIS frontend

A382177 a(n) is the least k > 1 such that the factorial base expansion of k*n starts with that of n while the remaining digits are zeros.

n	a(n)
0	2
1	2
2	3
3	10
4	3
5	312
6	4
7	18
8	18
9	96
10	96
11	600
12	4
13	6168960
14	6120
15	18
16	18
17	11017036800
18	4
19	56229997824000
20	114
21	760
22	68947200
23	18
24	5
25	14544
26	141120
27	192
28	13320
29	9092075324665919034015350784000000
30	28
31	520412336961032355840000
32	27
33	1400
34	199584000
35	116496
36	180

[2, 2, 3, 10, 3, 312, 4, 18, 18, 96, 96, 600, 4, 6168960, 6120, 18, 18, 11017036800, 4, 56229997824000, 114, 760, 68947200, 18, 5, 14544, 141120, 192, 13320, 9092075324665919034015350784000000, 28, 520412336961032355840000, 27, 1400, 199584000, 116496, 180]

cp's OEIS Frontend

A382177 a(n) is the least k > 1 such that the factorial base expansion of k*n starts with that of n while the remaining digits are zeros.

Table of values

List of values