A324705 - cp's OEIS frontend

A324705 Lexicographically earliest sequence containing 1 and all composite numbers divisible by prime(m) for some m already in the sequence.

n	a(n)
1	1
2	4
3	6
4	8
5	10
6	12
7	14
8	16
9	18
10	20
11	21
12	22
13	24
14	26
15	28
16	30
17	32
18	34
19	35
20	36
21	38
22	39
23	40
24	42
25	44
26	46
27	48
28	49
29	50
30	52
31	54
32	56
33	57
34	58
35	60
36	62
37	63
38	64
39	65
40	66
41	68
42	70
43	72
44	74
45	76
46	77
47	78
48	80
49	82
50	84
51	86
52	87
53	88
54	90
55	91
56	92
57	94
58	95
59	96
60	98
61	100
62	102
63	104
64	105
65	106

[1, 4, 6, 8, 10, 12, 14, 16, 18, 20, 21, 22, 24, 26, 28, 30, 32, 34, 35, 36, 38, 39, 40, 42, 44, 46, 48, 49, 50, 52, 54, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 70, 72, 74, 76, 77, 78, 80, 82, 84, 86, 87, 88, 90, 91, 92, 94, 95, 96, 98, 100, 102, 104, 105, 106]

cp's OEIS Frontend

A324705 Lexicographically earliest sequence containing 1 and all composite numbers divisible by prime(m) for some m already in the sequence.

Table of values

List of values

n	a(n)
1	1
2	4
3	6
4	8
5	10
6	12
7	14
8	16
9	18
10	20
11	21
12	22
13	24
14	26
15	28
16	30
17	32
18	34
19	35
20	36
21	38
22	39
23	40
24	42
25	44
26	46
27	48
28	49
29	50
30	52
31	54
32	56
33	57
34	58
35	60
36	62
37	63
38	64
39	65
40	66
41	68
42	70
43	72
44	74
45	76
46	77
47	78
48	80
49	82
50	84
51	86
52	87
53	88
54	90
55	91
56	92
57	94
58	95
59	96
60	98
61	100
62	102
63	104
64	105
65	106

n	a(n)
1	1
2	4
3	6
4	8
5	10
6	12
7	14
8	16
9	18
10	20
11	21
12	22
13	24
14	26
15	28
16	30
17	32
18	34
19	35
20	36
21	38
22	39
23	40
24	42
25	44
26	46
27	48
28	49
29	50
30	52
31	54
32	56
33	57
34	58
35	60
36	62
37	63
38	64
39	65
40	66
41	68
42	70
43	72
44	74
45	76
46	77
47	78
48	80
49	82
50	84
51	86
52	87
53	88
54	90
55	91
56	92
57	94
58	95
59	96
60	98
61	100
62	102
63	104
64	105
65	106

n	a(n)
1	1
2	4
3	6
4	8
5	10
6	12
7	14
8	16
9	18
10	20
11	21
12	22
13	24
14	26
15	28
16	30
17	32
18	34
19	35
20	36
21	38
22	39
23	40
24	42
25	44
26	46
27	48
28	49
29	50
30	52
31	54
32	56
33	57
34	58
35	60
36	62
37	63
38	64
39	65
40	66
41	68
42	70
43	72
44	74
45	76
46	77
47	78
48	80
49	82
50	84
51	86
52	87
53	88
54	90
55	91
56	92
57	94
58	95
59	96
60	98
61	100
62	102
63	104
64	105
65	106