A366111 - cp's OEIS frontend

A366111 a(1) = 1; a(2) = 2; for n > 2, a(n) is the smallest positive number that has not yet appeared such that |a(n) - a(n-1)| is a divisor of a(n)*a(n-1), and where |a(n) - a(n-1)| > 1.

n	a(n)
1	1
2	2
3	4
4	6
5	3
6	12
7	8
8	10
9	5
10	30
11	15
12	18
13	9
14	36
15	20
16	16
17	14
18	7
19	56
20	24
21	21
22	28
23	26
24	13
25	182
26	84
27	35
28	40
29	32
30	34
31	17
32	306
33	102
34	51
35	42
36	33
37	22
38	11
39	132
40	44
41	46
42	23
43	552
44	138
45	69
46	60
47	45
48	48
49	39
50	52
51	50
52	25
53	150
54	75
55	66
56	54
57	27
58	108
59	72
60	63
61	70
62	65
63	78
64	74
65	37
66	1406
67	684
68	171
69	90
70	80
71	55
72	110
73	85

[1, 2, 4, 6, 3, 12, 8, 10, 5, 30, 15, 18, 9, 36, 20, 16, 14, 7, 56, 24, 21, 28, 26, 13, 182, 84, 35, 40, 32, 34, 17, 306, 102, 51, 42, 33, 22, 11, 132, 44, 46, 23, 552, 138, 69, 60, 45, 48, 39, 52, 50, 25, 150, 75, 66, 54, 27, 108, 72, 63, 70, 65, 78, 74, 37, 1406, 684, 171, 90, 80, 55, 110, 85]

cp's OEIS Frontend

A366111 a(1) = 1; a(2) = 2; for n > 2, a(n) is the smallest positive number that has not yet appeared such that |a(n) - a(n-1)| is a divisor of a(n)*a(n-1), and where |a(n) - a(n-1)| > 1.

Table of values

List of values