A050921 - cp's OEIS frontend

A050921 Smallest prime of form n*2^m+1, m >= 0, or 0 if no such prime exists.

n	a(n)
1	2
2	3
3	7
4	5
5	11
6	7
7	29
8	17
9	19
10	11
11	23
12	13
13	53
14	29
15	31
16	17
17	137
18	19
19	1217
20	41
21	43
22	23
23	47
24	97
25	101
26	53
27	109
28	29
29	59
30	31
31	7937
32	257
33	67
34	137
35	71
36	37
37	149
38	1217
39	79
40	41
41	83
42	43
43	173
44	89
45	181
46	47

[2, 3, 7, 5, 11, 7, 29, 17, 19, 11, 23, 13, 53, 29, 31, 17, 137, 19, 1217, 41, 43, 23, 47, 97, 101, 53, 109, 29, 59, 31, 7937, 257, 67, 137, 71, 37, 149, 1217, 79, 41, 83, 43, 173, 89, 181, 47]

cp's OEIS Frontend

A050921 Smallest prime of form n*2^m+1, m >= 0, or 0 if no such prime exists.

Table of values

List of values