A236917 - cp's OEIS frontend

A236917 Numbers n for which there is no k such that n - k and n + k are both prime, with 0 <= k <= sqrt(n).

n	a(n)
1	1
2	8
3	22
4	24
5	25
6	28
7	32
8	35
9	38
10	46
11	49
12	51
13	52
14	55
15	58
16	62
17	68
18	74
19	80
20	82
21	85
22	87
23	91
24	94
25	112
26	114
27	115
28	116
29	119
30	121
31	123
32	124
33	125
34	126
35	128
36	130
37	136
38	142
39	146
40	152
41	155
42	164
43	166
44	175
45	178
46	184
47	200
48	203
49	206
50	207
51	208
52	209
53	212
54	214
55	215
56	216
57	218

[1, 8, 22, 24, 25, 28, 32, 35, 38, 46, 49, 51, 52, 55, 58, 62, 68, 74, 80, 82, 85, 87, 91, 94, 112, 114, 115, 116, 119, 121, 123, 124, 125, 126, 128, 130, 136, 142, 146, 152, 155, 164, 166, 175, 178, 184, 200, 203, 206, 207, 208, 209, 212, 214, 215, 216, 218]

cp's OEIS Frontend

A236917 Numbers n for which there is no k such that n - k and n + k are both prime, with 0 <= k <= sqrt(n).

Table of values

List of values

n	a(n)
1	1
2	8
3	22
4	24
5	25
6	28
7	32
8	35
9	38
10	46
11	49
12	51
13	52
14	55
15	58
16	62
17	68
18	74
19	80
20	82
21	85
22	87
23	91
24	94
25	112
26	114
27	115
28	116
29	119
30	121
31	123
32	124
33	125
34	126
35	128
36	130
37	136
38	142
39	146
40	152
41	155
42	164
43	166
44	175
45	178
46	184
47	200
48	203
49	206
50	207
51	208
52	209
53	212
54	214
55	215
56	216
57	218

n	a(n)
1	1
2	8
3	22
4	24
5	25
6	28
7	32
8	35
9	38
10	46
11	49
12	51
13	52
14	55
15	58
16	62
17	68
18	74
19	80
20	82
21	85
22	87
23	91
24	94
25	112
26	114
27	115
28	116
29	119
30	121
31	123
32	124
33	125
34	126
35	128
36	130
37	136
38	142
39	146
40	152
41	155
42	164
43	166
44	175
45	178
46	184
47	200
48	203
49	206
50	207
51	208
52	209
53	212
54	214
55	215
56	216
57	218

n	a(n)
1	1
2	8
3	22
4	24
5	25
6	28
7	32
8	35
9	38
10	46
11	49
12	51
13	52
14	55
15	58
16	62
17	68
18	74
19	80
20	82
21	85
22	87
23	91
24	94
25	112
26	114
27	115
28	116
29	119
30	121
31	123
32	124
33	125
34	126
35	128
36	130
37	136
38	142
39	146
40	152
41	155
42	164
43	166
44	175
45	178
46	184
47	200
48	203
49	206
50	207
51	208
52	209
53	212
54	214
55	215
56	216
57	218