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A351775
as a simple table
n
a(n)
0
2
1
3
2
10
3
1134
4
1779741927370
5
18420061471485119632756156593998809036909505674991629417779936
[2,3,10,1134,1779741927370, 18420061471485119632756156593998809036909505674991\ 629417779936]