A297601 - OEIS

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A297601 as a simple table

n	a(n)
1	2
2	11
3	181
4	6413
5	654033
6	167209522
7	113592447685
8	194907376248498
9	879332745226144714
10	10237211550601397234033

[2,11,181,6413,654033,167209522,113592447685, 194907376248498,879332745226144714, 10237211550601397234033]