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A208848
as a simple table
n
a(n)
0
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
3
10
0
11
0
12
13
13
0
14
0
15
26
16
0
17
0
18
54
19
0
20
238
21
794
22
0
23
0
24
308
25
545
26
0
[0,0,0,0,0,0,0,0,0,3,0,0,13,0,0,26,0,0,54,0,238, 794,0,0,308,545,0]