A078830 - OEIS

A078830 as a simple table

n	a(n)
1	2
2	3
3	4
4	8
5	9
6	16
7	32
8	33
9	64
10	65
11	128
12	129
13	256
14	512
15	513
16	1024
17	1025
18	2048
19	2049
20	4096
21	4097
22	8192
23	8193
24	16384
25	16385
26	32768
27	32769
28	65536
29	131072
30	131073
31	262144
32	262145
33	524288
34	524289
35	1048576
36	1048577
37	2097152
38	2097153
39	4194304
40	4194305

[2,3,4,8,9,16,32,33,64,65,128,129,256,512,513, 1024,1025,2048,2049,4096,4097,8192,8193,16384, 16385,32768,32769,65536,131072,131073,262144, 262145,524288,524289,1048576,1048577,2097152, 2097153,4194304,4194305]