A248237 - OEIS

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A248237 as a simple table

n	a(n)
0	2
1	2
2	7
3	346
4	250326
5	159992246122
6	43126926376468440463866
7	2067900185855597116733968004943580535040713497
8	14833490144163739987168640921306687956266487136609932761918465200939453258507455567518894133

[2,2,7,346,250326,159992246122, 43126926376468440463866, 2067900185855597116733968004943580535040713497, 14833490144163739987168640921306687956266487136609\ 932761918465200939453258507455567518894133]