A192520 - cp's OEIS frontend

A192520 Monotonic ordering of set S generated by these rules: if x and y are in S then floor(x*y/2) is in S, and 5 is in S.

n	a(n)
1	5
2	12
3	30
4	72
5	75
6	180
7	187
8	432
9	450
10	467
11	1080
12	1122
13	1125
14	1167
15	2592
16	2700
17	2802
18	2805
19	2812
20	2917
21	6480
22	6732
23	6750
24	7002
25	7005
26	7012
27	7030
28	7292
29	15552
30	16200
31	16812
32	16830
33	16872
34	16875
35	17484
36	17502
37	17505
38	17512
39	17530
40	17575
41	18230

[5, 12, 30, 72, 75, 180, 187, 432, 450, 467, 1080, 1122, 1125, 1167, 2592, 2700, 2802, 2805, 2812, 2917, 6480, 6732, 6750, 7002, 7005, 7012, 7030, 7292, 15552, 16200, 16812, 16830, 16872, 16875, 17484, 17502, 17505, 17512, 17530, 17575, 18230]

cp's OEIS Frontend

A192520 Monotonic ordering of set S generated by these rules: if x and y are in S then floor(x*y/2) is in S, and 5 is in S.

Table of values

List of values