A187024 - cp's OEIS frontend

A187024 a(n) is the least number k such that k*n+1 is a prime dividing n^n+1.

n	a(n)
2	2
3	2
4	64
5	104
6	2
7	16
8	12
9	8
10	10
11	2
12	16
13	1032
14	2
15	2
16	17136
17	2703399548648159360
18	2
19	5700
20	7436
21	16
22	437174342164
23	2
24	1392
25	9568
26	2
27	6
28	16
29	8
30	2
31	12
32	20
33	20
34	176764
35	2
36	623673825204293256537467494040862720
37	16
38	5340
39	2
40	16
41	440
42	16
43	22
44	8
45	990520

[2, 2, 64, 104, 2, 16, 12, 8, 10, 2, 16, 1032, 2, 2, 17136, 2703399548648159360, 2, 5700, 7436, 16, 437174342164, 2, 1392, 9568, 2, 6, 16, 8, 2, 12, 20, 20, 176764, 2, 623673825204293256537467494040862720, 16, 5340, 2, 16, 440, 16, 22, 8, 990520]

cp's OEIS Frontend

A187024 a(n) is the least number k such that k*n+1 is a prime dividing n^n+1.

Table of values

List of values