A347984 - cp's OEIS frontend

A347984 Variation of the Enots Wolley sequence A336957: earliest infinite sequence of distinct positive integers such that a(n) has a common factor with a(n-1) but not with a(n-2), and has a different number of divisors than a(n-1).

n	a(n)
1	1
2	2
3	6
4	45
5	35
6	28
7	22
8	99
9	15
10	20
11	14
12	63
13	33
14	44
15	10
16	75
17	21
18	56
19	26
20	117
21	51
22	68
23	38
24	171
25	39
26	52
27	34
28	153
29	57
30	76
31	40
32	55
33	231
34	12
35	46
36	575
37	65
38	78
39	58
40	725
41	85
42	102
43	62
44	775
45	95
46	114
47	69
48	805
49	50
50	24
51	87
52	1015
53	77
54	66
55	60
56	115
57	1127
58	42
59	74
60	925
61	105
62	18
63	82
64	1025
65	135
66	36
67	86
68	1075
69	145

[1, 2, 6, 45, 35, 28, 22, 99, 15, 20, 14, 63, 33, 44, 10, 75, 21, 56, 26, 117, 51, 68, 38, 171, 39, 52, 34, 153, 57, 76, 40, 55, 231, 12, 46, 575, 65, 78, 58, 725, 85, 102, 62, 775, 95, 114, 69, 805, 50, 24, 87, 1015, 77, 66, 60, 115, 1127, 42, 74, 925, 105, 18, 82, 1025, 135, 36, 86, 1075, 145]

cp's OEIS Frontend

A347984 Variation of the Enots Wolley sequence A336957: earliest infinite sequence of distinct positive integers such that a(n) has a common factor with a(n-1) but not with a(n-2), and has a different number of divisors than a(n-1).

Table of values

List of values