A281978 - cp's OEIS frontend

A281978 Lexicographically earliest sequence of distinct terms such that, for any n>0, a(2n) is divisible by a(2n-1) and by a(2n+1).

n	a(n)
1	1
2	4
3	2
4	6
5	3
6	15
7	5
8	20
9	10
10	40
11	8
12	24
13	12
14	36
15	9
16	54
17	18
18	90
19	30
20	120
21	60
22	180
23	45
24	135
25	27
26	162
27	81
28	324
29	108
30	216
31	72
32	144
33	16
34	64
35	32
36	96
37	48
38	240
39	80
40	320
41	160
42	640
43	128
44	384
45	192
46	576
47	288
48	864
49	432
50	1296
51	648
52	1944
53	243
54	972
55	486
56	1458
57	729
58	3645
59	405

[1, 4, 2, 6, 3, 15, 5, 20, 10, 40, 8, 24, 12, 36, 9, 54, 18, 90, 30, 120, 60, 180, 45, 135, 27, 162, 81, 324, 108, 216, 72, 144, 16, 64, 32, 96, 48, 240, 80, 320, 160, 640, 128, 384, 192, 576, 288, 864, 432, 1296, 648, 1944, 243, 972, 486, 1458, 729, 3645, 405]

cp's OEIS Frontend

A281978 Lexicographically earliest sequence of distinct terms such that, for any n>0, a(2n) is divisible by a(2n-1) and by a(2n+1).

Table of values

List of values