A339911 - cp's OEIS frontend

A339911 Numbers k > 1 for which bigomega(k) <= bigomega(k-1)/2, where bigomega gives the number of prime factors, counted with multiplicity.

n	a(n)
1	5
2	7
3	11
4	13
5	17
6	19
7	23
8	25
9	29
10	31
11	33
12	37
13	41
14	43
15	47
16	49
17	53
18	55
19	57
20	59
21	61
22	65
23	67
24	71
25	73
26	79
27	82
28	83
29	85
30	89
31	91
32	97
33	101
34	103
35	107
36	109
37	113
38	121
39	127
40	129
41	131
42	133
43	137
44	139
45	141
46	145
47	149
48	151
49	157
50	161
51	163
52	167
53	169
54	173
55	177
56	179
57	181
58	185
59	191
60	193
61	197
62	199
63	201
64	205
65	209
66	211
67	217
68	221
69	223
70	226
71	227

[5, 7, 11, 13, 17, 19, 23, 25, 29, 31, 33, 37, 41, 43, 47, 49, 53, 55, 57, 59, 61, 65, 67, 71, 73, 79, 82, 83, 85, 89, 91, 97, 101, 103, 107, 109, 113, 121, 127, 129, 131, 133, 137, 139, 141, 145, 149, 151, 157, 161, 163, 167, 169, 173, 177, 179, 181, 185, 191, 193, 197, 199, 201, 205, 209, 211, 217, 221, 223, 226, 227]

cp's OEIS Frontend

A339911 Numbers k > 1 for which bigomega(k) <= bigomega(k-1)/2, where bigomega gives the number of prime factors, counted with multiplicity.

Table of values

List of values

n	a(n)
1	5
2	7
3	11
4	13
5	17
6	19
7	23
8	25
9	29
10	31
11	33
12	37
13	41
14	43
15	47
16	49
17	53
18	55
19	57
20	59
21	61
22	65
23	67
24	71
25	73
26	79
27	82
28	83
29	85
30	89
31	91
32	97
33	101
34	103
35	107
36	109
37	113
38	121
39	127
40	129
41	131
42	133
43	137
44	139
45	141
46	145
47	149
48	151
49	157
50	161
51	163
52	167
53	169
54	173
55	177
56	179
57	181
58	185
59	191
60	193
61	197
62	199
63	201
64	205
65	209
66	211
67	217
68	221
69	223
70	226
71	227

n	a(n)
1	5
2	7
3	11
4	13
5	17
6	19
7	23
8	25
9	29
10	31
11	33
12	37
13	41
14	43
15	47
16	49
17	53
18	55
19	57
20	59
21	61
22	65
23	67
24	71
25	73
26	79
27	82
28	83
29	85
30	89
31	91
32	97
33	101
34	103
35	107
36	109
37	113
38	121
39	127
40	129
41	131
42	133
43	137
44	139
45	141
46	145
47	149
48	151
49	157
50	161
51	163
52	167
53	169
54	173
55	177
56	179
57	181
58	185
59	191
60	193
61	197
62	199
63	201
64	205
65	209
66	211
67	217
68	221
69	223
70	226
71	227

n	a(n)
1	5
2	7
3	11
4	13
5	17
6	19
7	23
8	25
9	29
10	31
11	33
12	37
13	41
14	43
15	47
16	49
17	53
18	55
19	57
20	59
21	61
22	65
23	67
24	71
25	73
26	79
27	82
28	83
29	85
30	89
31	91
32	97
33	101
34	103
35	107
36	109
37	113
38	121
39	127
40	129
41	131
42	133
43	137
44	139
45	141
46	145
47	149
48	151
49	157
50	161
51	163
52	167
53	169
54	173
55	177
56	179
57	181
58	185
59	191
60	193
61	197
62	199
63	201
64	205
65	209
66	211
67	217
68	221
69	223
70	226
71	227