A226181 - cp's OEIS frontend

A226181 Primes p such that p-1 divided by the period of the binary expansion of 1/p equals 2^x for some nonnegative integer x.

n	a(n)
1	3
2	5
3	7
4	11
5	13
6	17
7	19
8	23
9	29
10	37
11	41
12	47
13	53
14	59
15	61
16	67
17	71
18	73
19	79
20	83
21	89
22	97
23	101
24	103
25	107
26	113
27	131
28	137
29	139
30	149
31	163
32	167
33	173
34	179
35	181
36	191
37	193
38	197
39	199
40	211
41	227
42	233
43	239
44	257
45	263
46	269
47	271
48	281
49	293
50	311
51	313
52	317
53	337
54	347
55	349

[3, 5, 7, 11, 13, 17, 19, 23, 29, 37, 41, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 113, 131, 137, 139, 149, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 227, 233, 239, 257, 263, 269, 271, 281, 293, 311, 313, 317, 337, 347, 349]

cp's OEIS Frontend

A226181 Primes p such that p-1 divided by the period of the binary expansion of 1/p equals 2^x for some nonnegative integer x.

Table of values

List of values

n	a(n)
1	3
2	5
3	7
4	11
5	13
6	17
7	19
8	23
9	29
10	37
11	41
12	47
13	53
14	59
15	61
16	67
17	71
18	73
19	79
20	83
21	89
22	97
23	101
24	103
25	107
26	113
27	131
28	137
29	139
30	149
31	163
32	167
33	173
34	179
35	181
36	191
37	193
38	197
39	199
40	211
41	227
42	233
43	239
44	257
45	263
46	269
47	271
48	281
49	293
50	311
51	313
52	317
53	337
54	347
55	349

n	a(n)
1	3
2	5
3	7
4	11
5	13
6	17
7	19
8	23
9	29
10	37
11	41
12	47
13	53
14	59
15	61
16	67
17	71
18	73
19	79
20	83
21	89
22	97
23	101
24	103
25	107
26	113
27	131
28	137
29	139
30	149
31	163
32	167
33	173
34	179
35	181
36	191
37	193
38	197
39	199
40	211
41	227
42	233
43	239
44	257
45	263
46	269
47	271
48	281
49	293
50	311
51	313
52	317
53	337
54	347
55	349

n	a(n)
1	3
2	5
3	7
4	11
5	13
6	17
7	19
8	23
9	29
10	37
11	41
12	47
13	53
14	59
15	61
16	67
17	71
18	73
19	79
20	83
21	89
22	97
23	101
24	103
25	107
26	113
27	131
28	137
29	139
30	149
31	163
32	167
33	173
34	179
35	181
36	191
37	193
38	197
39	199
40	211
41	227
42	233
43	239
44	257
45	263
46	269
47	271
48	281
49	293
50	311
51	313
52	317
53	337
54	347
55	349