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A138801
as a simple table
n
a(n)
1
1
2
1
3
2
4
2
5
6
6
23
7
92
8
409
9
1916
10
9346
11
47182
12
244865
13
1300086
[1,1,2,2,6,23,92,409,1916,9346,47182,244865, 1300086]