A371303 - cp's OEIS frontend

A371303 Numbers k > 4 such that both k - 2^(2^m) and k + 2^(2^m) are prime for every natural m > 0 with 2^(2^m) < k.

n	a(n)
1	7
2	9
3	15
4	27
5	57
6	63
7	195
8	267
9	363
10	405
11	483
12	603
13	1197
14	1233
15	1443
16	1737
17	2715
18	4257
19	5403
20	6117
21	21855
22	22287
23	26817
24	40755
25	63777
26	260007
27	617253
28	986733
29	1151655
30	1167837
31	1174503
32	1199373
33	1331595
34	3233307
35	4128873
36	4138707
37	4609527
38	5938107
39	7203945
40	7605213
41	8379405
42	8587545
43	9596223

[7, 9, 15, 27, 57, 63, 195, 267, 363, 405, 483, 603, 1197, 1233, 1443, 1737, 2715, 4257, 5403, 6117, 21855, 22287, 26817, 40755, 63777, 260007, 617253, 986733, 1151655, 1167837, 1174503, 1199373, 1331595, 3233307, 4128873, 4138707, 4609527, 5938107, 7203945, 7605213, 8379405, 8587545, 9596223]

cp's OEIS Frontend

A371303 Numbers k > 4 such that both k - 2^(2^m) and k + 2^(2^m) are prime for every natural m > 0 with 2^(2^m) < k.

Table of values

List of values