A288164 - cp's OEIS frontend

A288164 Lexicographically earliest sequence of distinct positive terms such that, for any n > 0, a(n)*a(n+2) has at least 5 distinct prime factors.

n	a(n)
1	1
2	2
3	2310
4	1155
5	3
6	4
7	770
8	1365
9	6
10	8
11	385
12	1785
13	12
14	10
15	455
16	231
17	18
18	20
19	595
20	273
21	22
22	30
23	105
24	77
25	26
26	60
27	165
28	91
29	14
30	66
31	195
32	35
33	28
34	78
35	255
36	55
37	38
38	42
39	210
40	65
41	11
42	84
43	390
44	85
45	7
46	114
47	330
48	70
49	13
50	33
51	420
52	130
53	17
54	21
55	462
56	110
57	5
58	39
59	546
60	140

[1, 2, 2310, 1155, 3, 4, 770, 1365, 6, 8, 385, 1785, 12, 10, 455, 231, 18, 20, 595, 273, 22, 30, 105, 77, 26, 60, 165, 91, 14, 66, 195, 35, 28, 78, 255, 55, 38, 42, 210, 65, 11, 84, 390, 85, 7, 114, 330, 70, 13, 33, 420, 130, 17, 21, 462, 110, 5, 39, 546, 140]

cp's OEIS Frontend

A288164 Lexicographically earliest sequence of distinct positive terms such that, for any n > 0, a(n)*a(n+2) has at least 5 distinct prime factors.

Table of values

List of values