A239167 - OEIS

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A239167 as a simple table

n	a(n)
0	0
1	1
2	31
3	21590
4	475473009
5	399953578562811
6	14325140434481169064975
7	23442235543128214521886383970201
8	1841132100297745277187328924904656111127054
9	7197719612276659958196058354497691622150052900765626132

[0,1,31,21590,475473009,399953578562811, 14325140434481169064975, 23442235543128214521886383970201, 1841132100297745277187328924904656111127054, 71977196122766599581960583544976916221500529007656\ 26132]