A181816 - cp's OEIS frontend

A181816 a(n) is the smallest integer that, upon multiplying any divisor of A025487(n), produces a member of A025487.

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	1
8	2
9	12
10	1
11	4
12	2
13	12
14	1
15	4
16	2
17	12
18	1
19	4
20	24
21	2
22	360
23	8
24	12
25	1
26	4
27	24
28	2
29	360
30	8
31	12
32	1
33	4
34	24
35	2
36	360
37	8
38	144
39	12
40	1
41	48
42	4
43	720
44	16
45	24
46	2
47	360
48	8
49	144
50	12
51	1

[1, 1, 1, 2, 1, 2, 1, 2, 12, 1, 4, 2, 12, 1, 4, 2, 12, 1, 4, 24, 2, 360, 8, 12, 1, 4, 24, 2, 360, 8, 12, 1, 4, 24, 2, 360, 8, 144, 12, 1, 48, 4, 720, 16, 24, 2, 360, 8, 144, 12, 1]

cp's OEIS Frontend

A181816 a(n) is the smallest integer that, upon multiplying any divisor of A025487(n), produces a member of A025487.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	1
8	2
9	12
10	1
11	4
12	2
13	12
14	1
15	4
16	2
17	12
18	1
19	4
20	24
21	2
22	360
23	8
24	12
25	1
26	4
27	24
28	2
29	360
30	8
31	12
32	1
33	4
34	24
35	2
36	360
37	8
38	144
39	12
40	1
41	48
42	4
43	720
44	16
45	24
46	2
47	360
48	8
49	144
50	12
51	1

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	1
8	2
9	12
10	1
11	4
12	2
13	12
14	1
15	4
16	2
17	12
18	1
19	4
20	24
21	2
22	360
23	8
24	12
25	1
26	4
27	24
28	2
29	360
30	8
31	12
32	1
33	4
34	24
35	2
36	360
37	8
38	144
39	12
40	1
41	48
42	4
43	720
44	16
45	24
46	2
47	360
48	8
49	144
50	12
51	1

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	2
7	1
8	2
9	12
10	1
11	4
12	2
13	12
14	1
15	4
16	2
17	12
18	1
19	4
20	24
21	2
22	360
23	8
24	12
25	1
26	4
27	24
28	2
29	360
30	8
31	12
32	1
33	4
34	24
35	2
36	360
37	8
38	144
39	12
40	1
41	48
42	4
43	720
44	16
45	24
46	2
47	360
48	8
49	144
50	12
51	1