A249383 - cp's OEIS frontend

A249383 Smallest odd prime number Q such that Q*2^P-1 is also prime with P Mersenne prime exponent A000043(n).

n	a(n)
1	3
2	3
3	7
4	3
5	31
6	7
7	61
8	43
9	79
10	19
11	739
12	103
13	2707
14	4513
15	139
16	13
17	4027
18	28027
19	14029
20	87151
21	11257
22	8677
23	122449
24	104161
25	113287
26	216211
27	150097
28	862009
29	876721
30	414949
31	4590451
32	1391281

[3, 3, 7, 3, 31, 7, 61, 43, 79, 19, 739, 103, 2707, 4513, 139, 13, 4027, 28027, 14029, 87151, 11257, 8677, 122449, 104161, 113287, 216211, 150097, 862009, 876721, 414949, 4590451, 1391281]

cp's OEIS Frontend

A249383 Smallest odd prime number Q such that Q*2^P-1 is also prime with P Mersenne prime exponent A000043(n).

Table of values

List of values