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A080091
as a simple table
n
a(n)
0
1
1
1
2
1
3
1
4
2
5
3
6
5
7
9
8
18
9
35
10
75
11
159
12
355
13
802
14
1858
15
4347
16
10359
17
24894
18
60523
[1,1,1,1,2,3,5,9,18,35,75,159,355,802,1858,4347, 10359,24894,60523]