A004856 - OEIS

A004856 as a simple table

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	64
8	65
9	66
10	67
11	68
12	128
13	129
14	130
15	131
16	192
17	193
18	194
19	256
20	257
21	320
22	729
23	730
24	731
25	732
26	733
27	793
28	794
29	795
30	796
31	857
32	858
33	859
34	921
35	922
36	985
37	1458
38	1459
39	1460
40	1461
41	1522
42	1523
43	1524
44	1586
45	1587
46	1650
47	2187
48	2188
49	2189
50	2251
51	2252
52	2315

[0,1,2,3,4,5,64,65,66,67,68,128,129,130,131,192, 193,194,256,257,320,729,730,731,732,733,793,794, 795,796,857,858,859,921,922,985,1458,1459,1460, 1461,1522,1523,1524,1586,1587,1650,2187,2188,2189, 2251,2252,2315]