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A243795
as a simple table
n
a(n)
1
1
2
1
3
2
4
6
5
7
6
22
7
65
8
285
9
1442
10
10106
11
92277
12
1153548
13
19504515
[1,1,2,6,7,22,65,285,1442,10106,92277,1153548, 19504515]