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A079572
as a simple table
n
a(n)
1
1
2
1
3
2
4
5
5
10
6
26
7
70
8
284
9
1405
10
9868
11
90892
12
1144131
13
19425146
14
445781177
[1,1,2,5,10,26,70,284,1405,9868,90892,1144131, 19425146,445781177]