A242796 - cp's OEIS frontend

A242796 Least number k such that (k^k-n)/(k-n) is prime, or 0 if no such k exists.

n	a(n)
1	2
2	4
3	6
4	5
5	0
6	13
7	9
8	11
9	0
10	12
11	22
12	13
13	37
14	28
15	36
16	0
17	0
18	171
19	73
20	85
21	0
22	0
23	0
24	29
25	0
26	0
27	0
28	0
29	517
30	35
31	40
32	49
33	44
34	49
35	0
36	41
37	46
38	40
39	0
40	0
41	51
42	0
43	52
44	0
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	0
53	2841
54	0
55	0
56	0
57	0
58	0
59	0
60	67
61	0
62	64
63	0
64	199
65	125
66	221
67	0
68	0
69	153
70	113
71	239
72	0
73	97
74	0
75	0
76	0

[2, 4, 6, 5, 0, 13, 9, 11, 0, 12, 22, 13, 37, 28, 36, 0, 0, 171, 73, 85, 0, 0, 0, 29, 0, 0, 0, 0, 517, 35, 40, 49, 44, 49, 0, 41, 46, 40, 0, 0, 51, 0, 52, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2841, 0, 0, 0, 0, 0, 0, 67, 0, 64, 0, 199, 125, 221, 0, 0, 153, 113, 239, 0, 97, 0, 0, 0]

cp's OEIS Frontend

A242796 Least number k such that (k^k-n)/(k-n) is prime, or 0 if no such k exists.

Table of values

List of values