A084337 - cp's OEIS frontend

A084337 Rearrangement of positive integers so that the successive ratios (of the larger to the smaller term) are all distinct integers. a(m)/a(m-1) = a(k)/a(k-1) iff m = k (assuming a(m) > a(m-1), otherwise the ratio a(m-1)/a(m) is to be considered). Priority is given to smallest number not included earlier rather than to the successive ratio that has not occurred earlier.

n	a(n)
0	1
1	2
2	6
3	24
4	3
5	15
6	90
7	5
8	35
9	315
10	7
11	70
12	770
13	10
14	120
15	4
16	52
17	728
18	8
19	128
20	1920
21	12
22	204
23	3876
24	17
25	340
26	7140
27	14
28	308
29	11
30	253
31	6072
32	22
33	550
34	14300
35	13
36	351
37	9
38	261
39	8091
40	29
41	928
42	16
43	528
44	17952
45	32
46	1120
47	20
48	720
49	18
50	666
51	25308
52	19
53	779
54	32718
55	21
56	903
57	39732

[1, 2, 6, 24, 3, 15, 90, 5, 35, 315, 7, 70, 770, 10, 120, 4, 52, 728, 8, 128, 1920, 12, 204, 3876, 17, 340, 7140, 14, 308, 11, 253, 6072, 22, 550, 14300, 13, 351, 9, 261, 8091, 29, 928, 16, 528, 17952, 32, 1120, 20, 720, 18, 666, 25308, 19, 779, 32718, 21, 903, 39732]

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