A338338 - cp's OEIS frontend

A338338 Lexicographically earliest infinite sequence of distinct positive numbers such that for any prime p, any run of consecutive multiples of p has length exactly 3.

n	a(n)
1	1
2	2
3	4
4	6
5	3
6	9
7	5
8	10
9	20
10	8
11	7
12	14
13	28
14	12
15	15
16	30
17	40
18	16
19	11
20	22
21	44
22	18
23	21
24	42
25	56
26	24
27	27
28	33
29	55
30	110
31	50
32	26
33	13
34	39
35	36
36	48
37	32
38	17
39	34
40	68
41	38
42	19
43	57
44	45
45	60
46	70
47	84
48	63
49	51
50	85
51	170
52	80
53	46
54	23
55	69
56	54
57	66
58	88
59	77
60	35
61	105
62	75
63	72
64	52
65	78
66	117

[1, 2, 4, 6, 3, 9, 5, 10, 20, 8, 7, 14, 28, 12, 15, 30, 40, 16, 11, 22, 44, 18, 21, 42, 56, 24, 27, 33, 55, 110, 50, 26, 13, 39, 36, 48, 32, 17, 34, 68, 38, 19, 57, 45, 60, 70, 84, 63, 51, 85, 170, 80, 46, 23, 69, 54, 66, 88, 77, 35, 105, 75, 72, 52, 78, 117]

cp's OEIS Frontend

A338338 Lexicographically earliest infinite sequence of distinct positive numbers such that for any prime p, any run of consecutive multiples of p has length exactly 3.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	6
5	3
6	9
7	5
8	10
9	20
10	8
11	7
12	14
13	28
14	12
15	15
16	30
17	40
18	16
19	11
20	22
21	44
22	18
23	21
24	42
25	56
26	24
27	27
28	33
29	55
30	110
31	50
32	26
33	13
34	39
35	36
36	48
37	32
38	17
39	34
40	68
41	38
42	19
43	57
44	45
45	60
46	70
47	84
48	63
49	51
50	85
51	170
52	80
53	46
54	23
55	69
56	54
57	66
58	88
59	77
60	35
61	105
62	75
63	72
64	52
65	78
66	117

n	a(n)
1	1
2	2
3	4
4	6
5	3
6	9
7	5
8	10
9	20
10	8
11	7
12	14
13	28
14	12
15	15
16	30
17	40
18	16
19	11
20	22
21	44
22	18
23	21
24	42
25	56
26	24
27	27
28	33
29	55
30	110
31	50
32	26
33	13
34	39
35	36
36	48
37	32
38	17
39	34
40	68
41	38
42	19
43	57
44	45
45	60
46	70
47	84
48	63
49	51
50	85
51	170
52	80
53	46
54	23
55	69
56	54
57	66
58	88
59	77
60	35
61	105
62	75
63	72
64	52
65	78
66	117

n	a(n)
1	1
2	2
3	4
4	6
5	3
6	9
7	5
8	10
9	20
10	8
11	7
12	14
13	28
14	12
15	15
16	30
17	40
18	16
19	11
20	22
21	44
22	18
23	21
24	42
25	56
26	24
27	27
28	33
29	55
30	110
31	50
32	26
33	13
34	39
35	36
36	48
37	32
38	17
39	34
40	68
41	38
42	19
43	57
44	45
45	60
46	70
47	84
48	63
49	51
50	85
51	170
52	80
53	46
54	23
55	69
56	54
57	66
58	88
59	77
60	35
61	105
62	75
63	72
64	52
65	78
66	117