A057026 - cp's OEIS frontend

A057026 Smallest prime of form (2n+1)*2^m-1 for some m, or 0 if no such prime exists.

n	a(n)
0	3
1	2
2	19
3	13
4	17
5	43
6	103
7	29
8	67
9	37
10	41
11	367
12	199
13	53
14	463
15	61
16	131
17	139
18	73
19	311
20	163
21	5503
22	89
23	751
24	97
25	101
26	211
27	109
28	113
29	241663
30	487
31	251
32	1039
33	2143
34	137
35	283
36	9343
37	149
38	307
39	157
40	647
41	331
42	2719
43	173
44	1423
45	181
46	743
47	379
48	193
49	197
50	103423
51	823
52	419

[3, 2, 19, 13, 17, 43, 103, 29, 67, 37, 41, 367, 199, 53, 463, 61, 131, 139, 73, 311, 163, 5503, 89, 751, 97, 101, 211, 109, 113, 241663, 487, 251, 1039, 2143, 137, 283, 9343, 149, 307, 157, 647, 331, 2719, 173, 1423, 181, 743, 379, 193, 197, 103423, 823, 419]

cp's OEIS Frontend

A057026 Smallest prime of form (2n+1)*2^m-1 for some m, or 0 if no such prime exists.

Table of values

List of values