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A369243
as a simple table
n
a(n)
0
2
1
0
2
14
3
45
4
198
5
5114
6
65174
7
1086194
8
20485574
9
465779078
10
0
11
293420849770
12
318745032938881
[2,0,14,45,198,5114,65174,1086194,20485574, 465779078,0,293420849770,318745032938881]