A320911 - cp's OEIS frontend

A320911 Numbers with an even number of prime factors (counted with multiplicity) that can be factored into squarefree semiprimes.

n	a(n)
1	1
2	6
3	10
4	14
5	15
6	21
7	22
8	26
9	33
10	34
11	35
12	36
13	38
14	39
15	46
16	51
17	55
18	57
19	58
20	60
21	62
22	65
23	69
24	74
25	77
26	82
27	84
28	85
29	86
30	87
31	90
32	91
33	93
34	94
35	95
36	100
37	106
38	111
39	115
40	118
41	119
42	122
43	123
44	126
45	129
46	132
47	133
48	134
49	140
50	141
51	142
52	143
53	145
54	146
55	150
56	155
57	156
58	158
59	159

[1, 6, 10, 14, 15, 21, 22, 26, 33, 34, 35, 36, 38, 39, 46, 51, 55, 57, 58, 60, 62, 65, 69, 74, 77, 82, 84, 85, 86, 87, 90, 91, 93, 94, 95, 100, 106, 111, 115, 118, 119, 122, 123, 126, 129, 132, 133, 134, 140, 141, 142, 143, 145, 146, 150, 155, 156, 158, 159]

cp's OEIS Frontend

A320911 Numbers with an even number of prime factors (counted with multiplicity) that can be factored into squarefree semiprimes.

Table of values

List of values

n	a(n)
1	1
2	6
3	10
4	14
5	15
6	21
7	22
8	26
9	33
10	34
11	35
12	36
13	38
14	39
15	46
16	51
17	55
18	57
19	58
20	60
21	62
22	65
23	69
24	74
25	77
26	82
27	84
28	85
29	86
30	87
31	90
32	91
33	93
34	94
35	95
36	100
37	106
38	111
39	115
40	118
41	119
42	122
43	123
44	126
45	129
46	132
47	133
48	134
49	140
50	141
51	142
52	143
53	145
54	146
55	150
56	155
57	156
58	158
59	159

n	a(n)
1	1
2	6
3	10
4	14
5	15
6	21
7	22
8	26
9	33
10	34
11	35
12	36
13	38
14	39
15	46
16	51
17	55
18	57
19	58
20	60
21	62
22	65
23	69
24	74
25	77
26	82
27	84
28	85
29	86
30	87
31	90
32	91
33	93
34	94
35	95
36	100
37	106
38	111
39	115
40	118
41	119
42	122
43	123
44	126
45	129
46	132
47	133
48	134
49	140
50	141
51	142
52	143
53	145
54	146
55	150
56	155
57	156
58	158
59	159

n	a(n)
1	1
2	6
3	10
4	14
5	15
6	21
7	22
8	26
9	33
10	34
11	35
12	36
13	38
14	39
15	46
16	51
17	55
18	57
19	58
20	60
21	62
22	65
23	69
24	74
25	77
26	82
27	84
28	85
29	86
30	87
31	90
32	91
33	93
34	94
35	95
36	100
37	106
38	111
39	115
40	118
41	119
42	122
43	123
44	126
45	129
46	132
47	133
48	134
49	140
50	141
51	142
52	143
53	145
54	146
55	150
56	155
57	156
58	158
59	159