A079151 - cp's OEIS frontend

A079151 Primes p such that p-1 has at most 3 prime factors, counted with multiplicity; i.e., primes p such that bigomega(p-1) = A001222(p-1) <= 3.

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	19
8	23
9	29
10	31
11	43
12	47
13	53
14	59
15	67
16	71
17	79
18	83
19	103
20	107
21	131
22	139
23	149
24	167
25	173
26	179
27	191
28	223
29	227
30	239
31	263
32	269
33	283
34	293
35	311
36	317
37	347
38	359
39	367
40	383
41	389
42	419
43	431
44	439
45	443
46	467
47	479
48	499
49	503
50	509
51	557
52	563
53	587
54	599
55	607
56	619
57	643

[2, 3, 5, 7, 11, 13, 19, 23, 29, 31, 43, 47, 53, 59, 67, 71, 79, 83, 103, 107, 131, 139, 149, 167, 173, 179, 191, 223, 227, 239, 263, 269, 283, 293, 311, 317, 347, 359, 367, 383, 389, 419, 431, 439, 443, 467, 479, 499, 503, 509, 557, 563, 587, 599, 607, 619, 643]

cp's OEIS Frontend

A079151 Primes p such that p-1 has at most 3 prime factors, counted with multiplicity; i.e., primes p such that bigomega(p-1) = A001222(p-1) <= 3.

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	19
8	23
9	29
10	31
11	43
12	47
13	53
14	59
15	67
16	71
17	79
18	83
19	103
20	107
21	131
22	139
23	149
24	167
25	173
26	179
27	191
28	223
29	227
30	239
31	263
32	269
33	283
34	293
35	311
36	317
37	347
38	359
39	367
40	383
41	389
42	419
43	431
44	439
45	443
46	467
47	479
48	499
49	503
50	509
51	557
52	563
53	587
54	599
55	607
56	619
57	643

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	19
8	23
9	29
10	31
11	43
12	47
13	53
14	59
15	67
16	71
17	79
18	83
19	103
20	107
21	131
22	139
23	149
24	167
25	173
26	179
27	191
28	223
29	227
30	239
31	263
32	269
33	283
34	293
35	311
36	317
37	347
38	359
39	367
40	383
41	389
42	419
43	431
44	439
45	443
46	467
47	479
48	499
49	503
50	509
51	557
52	563
53	587
54	599
55	607
56	619
57	643

n	a(n)
1	2
2	3
3	5
4	7
5	11
6	13
7	19
8	23
9	29
10	31
11	43
12	47
13	53
14	59
15	67
16	71
17	79
18	83
19	103
20	107
21	131
22	139
23	149
24	167
25	173
26	179
27	191
28	223
29	227
30	239
31	263
32	269
33	283
34	293
35	311
36	317
37	347
38	359
39	367
40	383
41	389
42	419
43	431
44	439
45	443
46	467
47	479
48	499
49	503
50	509
51	557
52	563
53	587
54	599
55	607
56	619
57	643