A079152 - cp's OEIS frontend

A079152 Primes p such that either p-1 or p+1 has at most 3 prime factors, counted with multiplicity; i.e., primes p such that either bigomega(p-1) <= 3 or bigomega(p+1) <= 3, where bigomega(n) = A001222(n).

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	53
17	59
18	61
19	67
20	71
21	73
22	79
23	83
24	97
25	101
26	103
27	107
28	109
29	113
30	131
31	137
32	139
33	149
34	157
35	163
36	167
37	173
38	179
39	181
40	191
41	193
42	211
43	223
44	227
45	229
46	239
47	241
48	257
49	263
50	269
51	277
52	281
53	283
54	293
55	311
56	313
57	317
58	331

[2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 97, 101, 103, 107, 109, 113, 131, 137, 139, 149, 157, 163, 167, 173, 179, 181, 191, 193, 211, 223, 227, 229, 239, 241, 257, 263, 269, 277, 281, 283, 293, 311, 313, 317, 331]

cp's OEIS Frontend

A079152 Primes p such that either p-1 or p+1 has at most 3 prime factors, counted with multiplicity; i.e., primes p such that either bigomega(p-1) <= 3 or bigomega(p+1) <= 3, where bigomega(n) = A001222(n).

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	53
17	59
18	61
19	67
20	71
21	73
22	79
23	83
24	97
25	101
26	103
27	107
28	109
29	113
30	131
31	137
32	139
33	149
34	157
35	163
36	167
37	173
38	179
39	181
40	191
41	193
42	211
43	223
44	227
45	229
46	239
47	241
48	257
49	263
50	269
51	277
52	281
53	283
54	293
55	311
56	313
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	53
17	59
18	61
19	67
20	71
21	73
22	79
23	83
24	97
25	101
26	103
27	107
28	109
29	113
30	131
31	137
32	139
33	149
34	157
35	163
36	167
37	173
38	179
39	181
40	191
41	193
42	211
43	223
44	227
45	229
46	239
47	241
48	257
49	263
50	269
51	277
52	281
53	283
54	293
55	311
56	313
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	53
17	59
18	61
19	67
20	71
21	73
22	79
23	83
24	97
25	101
26	103
27	107
28	109
29	113
30	131
31	137
32	139
33	149
34	157
35	163
36	167
37	173
38	179
39	181
40	191
41	193
42	211
43	223
44	227
45	229
46	239
47	241
48	257
49	263
50	269
51	277
52	281
53	283
54	293
55	311
56	313
57	317
58	331