A236171 - cp's OEIS frontend

A236171 Numbers k such that k^2 - k - 1, k^3 - k - 1, and k^4 - k - 1 are all prime.

n	a(n)
1	4
2	9
3	11
4	16
5	55
6	60
7	71
8	189
9	361
10	450
11	469
12	669
13	1261
14	1351
15	1490
16	1591
17	2101
18	2254
19	2396
20	2594
21	3774
22	3866
23	4011
24	5375
25	5551
26	5840
27	6070
28	7336
29	7545
30	7666
31	7735
32	8105
33	8255
34	9825
35	10525
36	11621
37	12100
38	13084
39	13454

[4, 9, 11, 16, 55, 60, 71, 189, 361, 450, 469, 669, 1261, 1351, 1490, 1591, 2101, 2254, 2396, 2594, 3774, 3866, 4011, 5375, 5551, 5840, 6070, 7336, 7545, 7666, 7735, 8105, 8255, 9825, 10525, 11621, 12100, 13084, 13454]

cp's OEIS Frontend

A236171 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