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A300127
as a simple table
n
a(n)
0
0
1
1
2
2
3
3
4
10
5
34
6
98
7
339
8
1263
9
4626
10
18099
11
73782
12
306295
13
1319660
14
5844714
15
26481404
16
123172740
[0,1,2,3,10,34,98,339,1263,4626,18099,73782, 306295,1319660,5844714,26481404,123172740]