A178490 - cp's OEIS frontend

A178490 Primes of the form 2*p^k-1, where p is prime and k >= 1.

n	a(n)
1	3
2	5
3	7
4	13
5	17
6	31
7	37
8	53
9	61
10	73
11	97
12	127
13	157
14	193
15	241
16	277
17	313
18	337
19	397
20	421
21	457
22	541
23	577
24	613
25	661
26	673
27	733
28	757
29	877
30	997
31	1093
32	1153
33	1201
34	1213
35	1237
36	1249
37	1321
38	1381
39	1453
40	1621
41	1657
42	1753
43	1873
44	1933
45	1993
46	2017
47	2137
48	2341
49	2473
50	2557
51	2593

[3, 5, 7, 13, 17, 31, 37, 53, 61, 73, 97, 127, 157, 193, 241, 277, 313, 337, 397, 421, 457, 541, 577, 613, 661, 673, 733, 757, 877, 997, 1093, 1153, 1201, 1213, 1237, 1249, 1321, 1381, 1453, 1621, 1657, 1753, 1873, 1933, 1993, 2017, 2137, 2341, 2473, 2557, 2593]

cp's OEIS Frontend

A178490 Primes of the form 2*p^k-1, where p is prime and k >= 1.

Table of values

List of values