A270371 - OEIS

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A270371 as a simple table

n	a(n)
1	2
2	2
3	2
4	3
5	7
6	7702
7	1234163819
8	1590823281229385753
9	7255753768720849630767399215373753335
10	44436679763085787755205863082559307822924182270889047678247210478391618529

[2,2,2,3,7,7702,1234163819,1590823281229385753, 7255753768720849630767399215373753335, 44436679763085787755205863082559307822924182270889\ 047678247210478391618529]