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A375727
as a simple table
n
a(n)
2
15
3
475
4
1023
5
222
6
1924475
7
26910204
8
191999912
9
240365505
10
10127638898
11
15357419170
[15,475,1023,222,1924475,26910204,191999912, 240365505,10127638898,15357419170]