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A298438
as a simple table
n
a(n)
1
1
2
1
3
11
4
7
5
214
6
10681
7
610525
8
240137045
9
176490627544
10
423872214348626
[1,1,11,7,214,10681,610525,240137045,176490627544, 423872214348626]