A038699 - cp's OEIS frontend

A038699 Riesel problem: Smallest prime of form n*2^m-1, m >= 0, or 0 if no such prime exists.

n	a(n)
1	3
2	3
3	2
4	3
5	19
6	5
7	13
8	7
9	17
10	19
11	43
12	11
13	103
14	13
15	29
16	31
17	67
18	17
19	37
20	19
21	41
22	43
23	367
24	23
25	199
26	103
27	53
28	223
29	463
30	29
31	61
32	31
33	131
34	67
35	139
36	71
37	73
38	37
39	311
40	79
41	163
42	41
43	5503
44	43
45	89
46	367
47	751
48	47
49	97
50	199
51	101
52	103
53	211
54	53
55	109
56	223
57	113
58	463
59	241663
60	59
61	487
62	61

[3, 3, 2, 3, 19, 5, 13, 7, 17, 19, 43, 11, 103, 13, 29, 31, 67, 17, 37, 19, 41, 43, 367, 23, 199, 103, 53, 223, 463, 29, 61, 31, 131, 67, 139, 71, 73, 37, 311, 79, 163, 41, 5503, 43, 89, 367, 751, 47, 97, 199, 101, 103, 211, 53, 109, 223, 113, 463, 241663, 59, 487, 61]

cp's OEIS Frontend

A038699 Riesel problem: Smallest prime of form n*2^m-1, m >= 0, or 0 if no such prime exists.

Table of values

List of values