A268896 - OEIS

A268896 as a simple table

n	a(n)
0	1
1	3
2	5
3	6
4	8
5	10
6	16
7	18
8	20
9	36
10	38
11	40
12	76
13	78
14	80
15	156
16	158
17	160
18	316
19	318
20	320
21	636
22	638
23	640
24	1276
25	1278
26	1280
27	2556
28	2558
29	2560
30	5116
31	5118
32	5120
33	10236
34	10238
35	10240
36	20476
37	20478
38	20480
39	40956
40	40958

[1,3,5,6,8,10,16,18,20,36,38,40,76,78,80,156,158, 160,316,318,320,636,638,640,1276,1278,1280,2556, 2558,2560,5116,5118,5120,10236,10238,10240,20476, 20478,20480,40956,40958]