A320912 - cp's OEIS frontend

A320912 Numbers with an even number of prime factors (counted with multiplicity) that can be factored into distinct semiprimes.

n	a(n)
1	1
2	4
3	6
4	9
5	10
6	14
7	15
8	21
9	22
10	24
11	25
12	26
13	33
14	34
15	35
16	36
17	38
18	39
19	40
20	46
21	49
22	51
23	54
24	55
25	56
26	57
27	58
28	60
29	62
30	65
31	69
32	74
33	77
34	82
35	84
36	85
37	86
38	87
39	88
40	90
41	91
42	93
43	94
44	95
45	100
46	104
47	106
48	111
49	115
50	118
51	119
52	121
53	122
54	123
55	126
56	129
57	132
58	133
59	134
60	135
61	136
62	140

[1, 4, 6, 9, 10, 14, 15, 21, 22, 24, 25, 26, 33, 34, 35, 36, 38, 39, 40, 46, 49, 51, 54, 55, 56, 57, 58, 60, 62, 65, 69, 74, 77, 82, 84, 85, 86, 87, 88, 90, 91, 93, 94, 95, 100, 104, 106, 111, 115, 118, 119, 121, 122, 123, 126, 129, 132, 133, 134, 135, 136, 140]

cp's OEIS Frontend

A320912 Numbers with an even number of prime factors (counted with multiplicity) that can be factored into distinct semiprimes.

Table of values

List of values

n	a(n)
1	1
2	4
3	6
4	9
5	10
6	14
7	15
8	21
9	22
10	24
11	25
12	26
13	33
14	34
15	35
16	36
17	38
18	39
19	40
20	46
21	49
22	51
23	54
24	55
25	56
26	57
27	58
28	60
29	62
30	65
31	69
32	74
33	77
34	82
35	84
36	85
37	86
38	87
39	88
40	90
41	91
42	93
43	94
44	95
45	100
46	104
47	106
48	111
49	115
50	118
51	119
52	121
53	122
54	123
55	126
56	129
57	132
58	133
59	134
60	135
61	136
62	140

n	a(n)
1	1
2	4
3	6
4	9
5	10
6	14
7	15
8	21
9	22
10	24
11	25
12	26
13	33
14	34
15	35
16	36
17	38
18	39
19	40
20	46
21	49
22	51
23	54
24	55
25	56
26	57
27	58
28	60
29	62
30	65
31	69
32	74
33	77
34	82
35	84
36	85
37	86
38	87
39	88
40	90
41	91
42	93
43	94
44	95
45	100
46	104
47	106
48	111
49	115
50	118
51	119
52	121
53	122
54	123
55	126
56	129
57	132
58	133
59	134
60	135
61	136
62	140

n	a(n)
1	1
2	4
3	6
4	9
5	10
6	14
7	15
8	21
9	22
10	24
11	25
12	26
13	33
14	34
15	35
16	36
17	38
18	39
19	40
20	46
21	49
22	51
23	54
24	55
25	56
26	57
27	58
28	60
29	62
30	65
31	69
32	74
33	77
34	82
35	84
36	85
37	86
38	87
39	88
40	90
41	91
42	93
43	94
44	95
45	100
46	104
47	106
48	111
49	115
50	118
51	119
52	121
53	122
54	123
55	126
56	129
57	132
58	133
59	134
60	135
61	136
62	140