A018136 - OEIS

A018136 as a simple table

n	a(n)
0	1
1	2
2	2
3	3
4	5
5	8
6	12
7	18
8	28
9	42
10	64
11	97
12	147
13	223
14	338
15	512
16	776
17	1176
18	1783
19	2702
20	4096
21	6208
22	9410
23	14263
24	21619
25	32768
26	49667
27	75281
28	114105
29	172951
30	262144
31	397336
32	602249
33	912838
34	1383604
35	2097152

[1,2,2,3,5,8,12,18,28,42,64,97,147,223,338,512, 776,1176,1783,2702,4096,6208,9410,14263,21619, 32768,49667,75281,114105,172951,262144,397336, 602249,912838,1383604,2097152]