A367186 - cp's OEIS frontend

A367186 Numbers that can be written as 2^k + prime in more than one way.

n	a(n)
1	4
2	6
3	7
4	9
5	11
6	13
7	15
8	18
9	19
10	21
11	23
12	25
13	27
14	31
15	33
16	35
17	37
18	39
19	43
20	45
21	47
22	49
23	51
24	55
25	57
26	61
27	63
28	67
29	69
30	71
31	73
32	75
33	77
34	79
35	81
36	83
37	85
38	87
39	91
40	93
41	95
42	99
43	101
44	103
45	105
46	107
47	109
48	111
49	113
50	115
51	117
52	121
53	123
54	125
55	129
56	131
57	133
58	135
59	139
60	141
61	143
62	145
63	147
64	151
65	153
66	155

[4, 6, 7, 9, 11, 13, 15, 18, 19, 21, 23, 25, 27, 31, 33, 35, 37, 39, 43, 45, 47, 49, 51, 55, 57, 61, 63, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 91, 93, 95, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 121, 123, 125, 129, 131, 133, 135, 139, 141, 143, 145, 147, 151, 153, 155]

cp's OEIS Frontend

A367186 Numbers that can be written as 2^k + prime in more than one way.

Table of values

List of values

n	a(n)
1	4
2	6
3	7
4	9
5	11
6	13
7	15
8	18
9	19
10	21
11	23
12	25
13	27
14	31
15	33
16	35
17	37
18	39
19	43
20	45
21	47
22	49
23	51
24	55
25	57
26	61
27	63
28	67
29	69
30	71
31	73
32	75
33	77
34	79
35	81
36	83
37	85
38	87
39	91
40	93
41	95
42	99
43	101
44	103
45	105
46	107
47	109
48	111
49	113
50	115
51	117
52	121
53	123
54	125
55	129
56	131
57	133
58	135
59	139
60	141
61	143
62	145
63	147
64	151
65	153
66	155

n	a(n)
1	4
2	6
3	7
4	9
5	11
6	13
7	15
8	18
9	19
10	21
11	23
12	25
13	27
14	31
15	33
16	35
17	37
18	39
19	43
20	45
21	47
22	49
23	51
24	55
25	57
26	61
27	63
28	67
29	69
30	71
31	73
32	75
33	77
34	79
35	81
36	83
37	85
38	87
39	91
40	93
41	95
42	99
43	101
44	103
45	105
46	107
47	109
48	111
49	113
50	115
51	117
52	121
53	123
54	125
55	129
56	131
57	133
58	135
59	139
60	141
61	143
62	145
63	147
64	151
65	153
66	155

n	a(n)
1	4
2	6
3	7
4	9
5	11
6	13
7	15
8	18
9	19
10	21
11	23
12	25
13	27
14	31
15	33
16	35
17	37
18	39
19	43
20	45
21	47
22	49
23	51
24	55
25	57
26	61
27	63
28	67
29	69
30	71
31	73
32	75
33	77
34	79
35	81
36	83
37	85
38	87
39	91
40	93
41	95
42	99
43	101
44	103
45	105
46	107
47	109
48	111
49	113
50	115
51	117
52	121
53	123
54	125
55	129
56	131
57	133
58	135
59	139
60	141
61	143
62	145
63	147
64	151
65	153
66	155