A163888 - OEIS

A163888 as a simple table

n	a(n)
1	5
2	4
3	10
4	8
5	20
6	16
7	40
8	32
9	80
10	64
11	160
12	128
13	320
14	256
15	640
16	512
17	1280
18	1024
19	2560
20	2048
21	5120
22	4096
23	10240
24	8192
25	20480
26	16384
27	40960
28	32768
29	81920
30	65536
31	163840
32	131072
33	327680
34	262144
35	655360
36	524288
37	1310720
38	1048576
39	2621440
40	2097152
41	5242880

[5,4,10,8,20,16,40,32,80,64,160,128,320,256,640, 512,1280,1024,2560,2048,5120,4096,10240,8192, 20480,16384,40960,32768,81920,65536,163840,131072, 327680,262144,655360,524288,1310720,1048576, 2621440,2097152,5242880]