A239475 - cp's OEIS frontend

A239475 Least number k such that k^n + n and k^n - n are both prime, or 0 if no such number exists.

n	a(n)
1	4
2	3
3	2
4	0
5	42
6	175
7	66
8	3
9	2
10	4983
11	1770
12	55055
13	28686
14	18765
15	8456
16	0
17	594
18	128345
19	136080
20	81
21	92
22	1163409
23	18810
24	10415
25	11754
26	3855
27	0
28	86043
29	38880
30	17639
31	26088
32	37293
33	5540
34	612015
35	6876
36	0
37	44220
38	130425
39	110
40	9292527
41	1004850
42	1812149
43	442404
44	1007445
45	570658

[4, 3, 2, 0, 42, 175, 66, 3, 2, 4983, 1770, 55055, 28686, 18765, 8456, 0, 594, 128345, 136080, 81, 92, 1163409, 18810, 10415, 11754, 3855, 0, 86043, 38880, 17639, 26088, 37293, 5540, 612015, 6876, 0, 44220, 130425, 110, 9292527, 1004850, 1812149, 442404, 1007445, 570658]

cp's OEIS Frontend

A239475 Least number k such that k^n + n and k^n - n are both prime, or 0 if no such number exists.

Table of values

List of values