A123176 - cp's OEIS frontend

A123176 Numbers n such that (2^p + 1)/3 is prime, where p is the n-th prime.

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	9
9	11
10	14
11	18
12	22
13	26
14	31
15	39
16	43
17	46
18	65
19	69
20	126
21	267
22	380
23	495
24	762
25	1285
26	1304
27	1364
28	1479
29	1697
30	4469
31	8135
32	9193
33	11065
34	11902
35	12923
36	13103
37	23396
38	23642
39	31850
40	77509
41	285228

[2, 3, 4, 5, 6, 7, 8, 9, 11, 14, 18, 22, 26, 31, 39, 43, 46, 65, 69, 126, 267, 380, 495, 762, 1285, 1304, 1364, 1479, 1697, 4469, 8135, 9193, 11065, 11902, 12923, 13103, 23396, 23642, 31850, 77509, 285228]

cp's OEIS Frontend

A123176 Numbers n such that (2^p + 1)/3 is prime, where p is the n-th prime.

Table of values

List of values