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A345908
as a simple table
n
a(n)
0
1
1
1
2
0
3
1
4
3
5
3
6
6
7
15
8
24
9
43
10
92
11
171
12
315
13
629
14
1218
15
2313
16
4523
17
8835
18
17076
19
33299
20
65169
[1,1,0,1,3,3,6,15,24,43,92,171,315,629,1218,2313, 4523,8835,17076,33299,65169]