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A296626
as a simple table
n
a(n)
0
1
1
2
2
6
3
14
4
34
5
74
6
164
7
342
8
714
9
1442
10
2894
11
5686
12
11096
13
21322
14
40688
[1,2,6,14,34,74,164,342,714,1442,2894,5686,11096, 21322,40688]