A158780 - OEIS

A158780 as a simple table

n	a(n)
0	0
1	1
2	1
3	1
4	2
5	2
6	4
7	4
8	8
9	8
10	16
11	16
12	32
13	32
14	64
15	64
16	128
17	128
18	256
19	256
20	512
21	512
22	1024
23	1024
24	2048
25	2048
26	4096
27	4096
28	8192
29	8192
30	16384
31	16384
32	32768
33	32768
34	65536
35	65536
36	131072
37	131072
38	262144
39	262144
40	524288
41	524288
42	1048576
43	1048576
44	2097152
45	2097152
46	4194304

[0,1,1,1,2,2,4,4,8,8,16,16,32,32,64,64,128,128, 256,256,512,512,1024,1024,2048,2048,4096,4096, 8192,8192,16384,16384,32768,32768,65536,65536, 131072,131072,262144,262144,524288,524288,1048576, 1048576,2097152,2097152,4194304]