A057683 - cp's OEIS frontend

A057683 Numbers k such that k^2 + k + 1, k^3 + k + 1 and k^4 + k + 1 are all prime.

n	a(n)
1	1
2	2
3	5
4	6
5	12
6	69
7	77
8	131
9	162
10	426
11	701
12	792
13	1221
14	1494
15	1644
16	1665
17	2129
18	2429
19	2696
20	3459
21	3557
22	3771
23	4350
24	4367
25	5250
26	5670
27	6627
28	7059
29	7514
30	7929
31	8064
32	9177
33	9689
34	10307
35	10431
36	11424
37	13296
38	13299
39	13545
40	14154
41	14286
42	14306
43	15137

[1, 2, 5, 6, 12, 69, 77, 131, 162, 426, 701, 792, 1221, 1494, 1644, 1665, 2129, 2429, 2696, 3459, 3557, 3771, 4350, 4367, 5250, 5670, 6627, 7059, 7514, 7929, 8064, 9177, 9689, 10307, 10431, 11424, 13296, 13299, 13545, 14154, 14286, 14306, 15137]

cp's OEIS Frontend

A057683 Numbers k such that k^2 + k + 1, k^3 + k + 1 and k^4 + k + 1 are all prime.

Table of values

List of values