A306693 - cp's OEIS frontend

A306693 a(n) is the least strongly refactorable multiple of n if any, or a(n) = -1 otherwise.

n	a(n)
1	1
2	2
3	12
4	12
5	240
6	12
7	3360
8	24
9	36
10	240
11	5280
12	12
13	6240
14	3360
15	240
16	240
17	8160
18	36
19	9120
20	240
21	3360
22	5280
23	11040
24	24
25	21600
26	6240
27	4320
28	3360
29	13920
30	240
31	14880
32	480
33	5280
34	8160
35	3360
36	36
37	17760
38	9120
39	6240
40	240
41	19680
42	3360
43	20640
44	5280
45	720
46	11040
47	22560

[1, 2, 12, 12, 240, 12, 3360, 24, 36, 240, 5280, 12, 6240, 3360, 240, 240, 8160, 36, 9120, 240, 3360, 5280, 11040, 24, 21600, 6240, 4320, 3360, 13920, 240, 14880, 480, 5280, 8160, 3360, 36, 17760, 9120, 6240, 240, 19680, 3360, 20640, 5280, 720, 11040, 22560]

cp's OEIS Frontend

A306693 a(n) is the least strongly refactorable multiple of n if any, or a(n) = -1 otherwise.

Table of values

List of values