A195351 - cp's OEIS frontend

A195351 Numbers k such that there are no primes in the range [2^k-k, 2^k+k].

n	a(n)
1	0
2	25
3	27
4	45
5	49
6	97
7	99
8	113
9	139
10	176
11	186
12	208
13	216
14	227
15	232
16	259
17	298
18	309
19	332
20	358
21	362
22	364
23	387
24	490
25	631
26	659
27	662
28	676
29	698
30	705
31	718
32	726
33	737
34	747
35	781
36	849
37	860
38	862
39	901
40	913
41	918
42	936
43	958
44	965
45	966
46	992
47	998

[0, 25, 27, 45, 49, 97, 99, 113, 139, 176, 186, 208, 216, 227, 232, 259, 298, 309, 332, 358, 362, 364, 387, 490, 631, 659, 662, 676, 698, 705, 718, 726, 737, 747, 781, 849, 860, 862, 901, 913, 918, 936, 958, 965, 966, 992, 998]

cp's OEIS Frontend

A195351 Numbers k such that there are no primes in the range [2^k-k, 2^k+k].

Table of values

List of values

n	a(n)
1	0
2	25
3	27
4	45
5	49
6	97
7	99
8	113
9	139
10	176
11	186
12	208
13	216
14	227
15	232
16	259
17	298
18	309
19	332
20	358
21	362
22	364
23	387
24	490
25	631
26	659
27	662
28	676
29	698
30	705
31	718
32	726
33	737
34	747
35	781
36	849
37	860
38	862
39	901
40	913
41	918
42	936
43	958
44	965
45	966
46	992
47	998

n	a(n)
1	0
2	25
3	27
4	45
5	49
6	97
7	99
8	113
9	139
10	176
11	186
12	208
13	216
14	227
15	232
16	259
17	298
18	309
19	332
20	358
21	362
22	364
23	387
24	490
25	631
26	659
27	662
28	676
29	698
30	705
31	718
32	726
33	737
34	747
35	781
36	849
37	860
38	862
39	901
40	913
41	918
42	936
43	958
44	965
45	966
46	992
47	998

n	a(n)
1	0
2	25
3	27
4	45
5	49
6	97
7	99
8	113
9	139
10	176
11	186
12	208
13	216
14	227
15	232
16	259
17	298
18	309
19	332
20	358
21	362
22	364
23	387
24	490
25	631
26	659
27	662
28	676
29	698
30	705
31	718
32	726
33	737
34	747
35	781
36	849
37	860
38	862
39	901
40	913
41	918
42	936
43	958
44	965
45	966
46	992
47	998