A283657 - cp's OEIS frontend

A283657 Numbers m such that 2^m + 1 has at most 2 distinct prime factors.

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	13
15	16
16	17
17	19
18	20
19	23
20	28
21	31
22	32
23	40
24	43
25	61
26	64
27	79
28	92
29	101
30	104
31	127
32	128
33	148
34	167
35	191
36	199
37	256
38	313
39	347
40	356
41	596
42	692
43	701
44	1004
45	1228
46	1268
47	1709
48	2617
49	3539
50	3824
51	5807
52	10501
53	10691
54	11279
55	12391
56	14479

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16, 17, 19, 20, 23, 28, 31, 32, 40, 43, 61, 64, 79, 92, 101, 104, 127, 128, 148, 167, 191, 199, 256, 313, 347, 356, 596, 692, 701, 1004, 1228, 1268, 1709, 2617, 3539, 3824, 5807, 10501, 10691, 11279, 12391, 14479]

cp's OEIS Frontend

A283657 Numbers m such that 2^m + 1 has at most 2 distinct prime factors.

Table of values

List of values