A083416 - OEIS

A083416 as a simple table

n	a(n)
1	1
2	2
3	4
4	5
5	10
6	11
7	22
8	23
9	46
10	47
11	94
12	95
13	190
14	191
15	382
16	383
17	766
18	767
19	1534
20	1535
21	3070
22	3071
23	6142
24	6143
25	12286
26	12287
27	24574
28	24575
29	49150
30	49151
31	98302
32	98303
33	196606
34	196607
35	393214
36	393215
37	786430
38	786431
39	1572862
40	1572863
41	3145726
42	3145727
43	6291454

[1,2,4,5,10,11,22,23,46,47,94,95,190,191,382,383, 766,767,1534,1535,3070,3071,6142,6143,12286,12287, 24574,24575,49150,49151,98302,98303,196606,196607, 393214,393215,786430,786431,1572862,1572863, 3145726,3145727,6291454]