A240235 - cp's OEIS frontend

A240235 Least number k such that k*n^k - 1 is prime. a(n) = 0 if no such number exists.

n	a(n)
1	3
2	2
3	1
4	1
5	8
6	1
7	2
8	1
9	10
10	2
11	2
12	1
13	2
14	1
15	2
16	167
17	2
18	1
19	12
20	1
21	2
22	2
23	29028
24	1
25	2
26	3
27	10
28	2
29	26850
30	1
31	8
32	1
33	42
34	2
35	6
36	2
37	24
38	1
39	2
40	3
41	2
42	1
43	2
44	1
45	2
46	2
47	140
48	1
49	2
50	2
51	22
52	2
53	8
54	1
55	2064
56	2
57	468
58	6
59	2
60	1
61	362
62	1
63	2
64	2
65	6
66	3
67	26
68	1
69	2
70	3
71	20
72	1
73	2
74	1
75	28
76	2
77	38
78	5
79	3024
80	1
81	2
82	81
83	858
84	1

[3, 2, 1, 1, 8, 1, 2, 1, 10, 2, 2, 1, 2, 1, 2, 167, 2, 1, 12, 1, 2, 2, 29028, 1, 2, 3, 10, 2, 26850, 1, 8, 1, 42, 2, 6, 2, 24, 1, 2, 3, 2, 1, 2, 1, 2, 2, 140, 1, 2, 2, 22, 2, 8, 1, 2064, 2, 468, 6, 2, 1, 362, 1, 2, 2, 6, 3, 26, 1, 2, 3, 20, 1, 2, 1, 28, 2, 38, 5, 3024, 1, 2, 81, 858, 1]

cp's OEIS Frontend

A240235 Least number k such that k*n^k - 1 is prime. a(n) = 0 if no such number exists.

Table of values

List of values