A127566 - cp's OEIS frontend

A127566 Primes p such that at least one of k-1, k+1 is prime, where k = absolute value of q^2 - p*r and p, q, r are consecutive primes.

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	17
8	19
9	23
10	29
11	31
12	37
13	41
14	43
15	47
16	59
17	61
18	67
19	71
20	73
21	83
22	89
23	97
24	101
25	103
26	107
27	113
28	127
29	137
30	139
31	149
32	151
33	157
34	163
35	167
36	173
37	179
38	181
39	191
40	193
41	211
42	223
43	227
44	229
45	233
46	239
47	241
48	251
49	257
50	263
51	271
52	277
53	281
54	283
55	307
56	311
57	317
58	331

[2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 59, 61, 67, 71, 73, 83, 89, 97, 101, 103, 107, 113, 127, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 271, 277, 281, 283, 307, 311, 317, 331]

cp's OEIS Frontend

A127566 Primes p such that at least one of k-1, k+1 is prime, where k = absolute value of q^2 - p*r and p, q, r are consecutive primes.

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	17
8	19
9	23
10	29
11	31
12	37
13	41
14	43
15	47
16	59
17	61
18	67
19	71
20	73
21	83
22	89
23	97
24	101
25	103
26	107
27	113
28	127
29	137
30	139
31	149
32	151
33	157
34	163
35	167
36	173
37	179
38	181
39	191
40	193
41	211
42	223
43	227
44	229
45	233
46	239
47	241
48	251
49	257
50	263
51	271
52	277
53	281
54	283
55	307
56	311
57	317
58	331

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	17
8	19
9	23
10	29
11	31
12	37
13	41
14	43
15	47
16	59
17	61
18	67
19	71
20	73
21	83
22	89
23	97
24	101
25	103
26	107
27	113
28	127
29	137
30	139
31	149
32	151
33	157
34	163
35	167
36	173
37	179
38	181
39	191
40	193
41	211
42	223
43	227
44	229
45	233
46	239
47	241
48	251
49	257
50	263
51	271
52	277
53	281
54	283
55	307
56	311
57	317
58	331

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	17
8	19
9	23
10	29
11	31
12	37
13	41
14	43
15	47
16	59
17	61
18	67
19	71
20	73
21	83
22	89
23	97
24	101
25	103
26	107
27	113
28	127
29	137
30	139
31	149
32	151
33	157
34	163
35	167
36	173
37	179
38	181
39	191
40	193
41	211
42	223
43	227
44	229
45	233
46	239
47	241
48	251
49	257
50	263
51	271
52	277
53	281
54	283
55	307
56	311
57	317
58	331