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A330900
as a simple table
n
a(n)
0
0
1
2
2
22
3
130
4
1196
5
11698
6
107315
7
961924
8
8641491
9
78304633
10
714962670
11
6572968299
[0,2,22,130,1196,11698,107315,961924,8641491, 78304633,714962670,6572968299]