A288171 - cp's OEIS frontend

A288171 Lexicographically earliest sequence of distinct positive terms such that, for any n > 0, a(n)*a(n+3) has at least 5 distinct prime factors.

n	a(n)
1	1
2	2
3	3
4	2310
5	1155
6	770
7	4
8	6
9	9
10	1365
11	385
12	910
13	8
14	12
15	11
16	1785
17	455
18	210
19	10
20	18
21	13
22	231
23	595
24	330
25	20
26	22
27	7
28	273
29	105
30	390
31	30
32	26
33	14
34	77
35	165
36	195
37	60
38	28
39	34
40	91
41	255
42	285
43	66
44	38
45	42
46	35
47	315
48	55
49	78
50	44
51	84
52	70
53	345
54	65
55	33
56	52
57	102
58	130
59	357
60	95

[1, 2, 3, 2310, 1155, 770, 4, 6, 9, 1365, 385, 910, 8, 12, 11, 1785, 455, 210, 10, 18, 13, 231, 595, 330, 20, 22, 7, 273, 105, 390, 30, 26, 14, 77, 165, 195, 60, 28, 34, 91, 255, 285, 66, 38, 42, 35, 315, 55, 78, 44, 84, 70, 345, 65, 33, 52, 102, 130, 357, 95]

cp's OEIS Frontend

A288171 Lexicographically earliest sequence of distinct positive terms such that, for any n > 0, a(n)*a(n+3) has at least 5 distinct prime factors.

Table of values

List of values