A192542 - cp's OEIS frontend

A192542 Numbers n such that the interval [2^n-n, 2^n] is prime-free.

n	a(n)
1	15
2	25
3	27
4	28
5	30
6	34
7	38
8	40
9	43
10	45
11	47
12	48
13	49
14	51
15	53
16	55
17	60
18	71
19	72
20	75
21	88
22	97
23	99
24	106
25	113
26	117
27	126
28	128
29	132
30	139
31	145
32	146
33	148
34	151
35	154
36	168
37	169
38	175
39	176
40	177
41	185
42	186
43	192
44	208
45	216
46	223
47	227
48	232
49	240
50	253
51	259

[15, 25, 27, 28, 30, 34, 38, 40, 43, 45, 47, 48, 49, 51, 53, 55, 60, 71, 72, 75, 88, 97, 99, 106, 113, 117, 126, 128, 132, 139, 145, 146, 148, 151, 154, 168, 169, 175, 176, 177, 185, 186, 192, 208, 216, 223, 227, 232, 240, 253, 259]

cp's OEIS Frontend

A192542 Numbers n such that the interval [2^n-n, 2^n] is prime-free.

Table of values

List of values

n	a(n)
1	15
2	25
3	27
4	28
5	30
6	34
7	38
8	40
9	43
10	45
11	47
12	48
13	49
14	51
15	53
16	55
17	60
18	71
19	72
20	75
21	88
22	97
23	99
24	106
25	113
26	117
27	126
28	128
29	132
30	139
31	145
32	146
33	148
34	151
35	154
36	168
37	169
38	175
39	176
40	177
41	185
42	186
43	192
44	208
45	216
46	223
47	227
48	232
49	240
50	253
51	259

n	a(n)
1	15
2	25
3	27
4	28
5	30
6	34
7	38
8	40
9	43
10	45
11	47
12	48
13	49
14	51
15	53
16	55
17	60
18	71
19	72
20	75
21	88
22	97
23	99
24	106
25	113
26	117
27	126
28	128
29	132
30	139
31	145
32	146
33	148
34	151
35	154
36	168
37	169
38	175
39	176
40	177
41	185
42	186
43	192
44	208
45	216
46	223
47	227
48	232
49	240
50	253
51	259

n	a(n)
1	15
2	25
3	27
4	28
5	30
6	34
7	38
8	40
9	43
10	45
11	47
12	48
13	49
14	51
15	53
16	55
17	60
18	71
19	72
20	75
21	88
22	97
23	99
24	106
25	113
26	117
27	126
28	128
29	132
30	139
31	145
32	146
33	148
34	151
35	154
36	168
37	169
38	175
39	176
40	177
41	185
42	186
43	192
44	208
45	216
46	223
47	227
48	232
49	240
50	253
51	259