A039951 - cp's OEIS frontend

A039951 a(n) is the smallest prime p such that p^2 divides n^(p-1) - 1.

n	a(n)
1	2
2	1093
3	11
4	1093
5	2
6	66161
7	5
8	3
9	2
10	3
11	71
12	2693
13	2
14	29
15	29131
16	1093
17	2
18	5
19	3
20	281
21	2
22	13
23	13
24	5
25	2
26	3
27	11
28	3
29	2
30	7
31	7
32	5
33	2
34	46145917691
35	3
36	66161
37	2
38	17
39	8039
40	11
41	2
42	23
43	5
44	3
45	2
46	3

[2, 1093, 11, 1093, 2, 66161, 5, 3, 2, 3, 71, 2693, 2, 29, 29131, 1093, 2, 5, 3, 281, 2, 13, 13, 5, 2, 3, 11, 3, 2, 7, 7, 5, 2, 46145917691, 3, 66161, 2, 17, 8039, 11, 2, 23, 5, 3, 2, 3]

cp's OEIS Frontend

A039951 a(n) is the smallest prime p such that p^2 divides n^(p-1) - 1.

Table of values

List of values