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A248238 as a simple table

n a(n)
0 2
1 2
2 4
3 13
4 665
5 3467111
6 21396320062803
7 658294037732639489281287503
8 22388829144690900907571301740725846339553919136567283158
9 522702581366233755060474792093646176756253098085471164612763539572950704431022333880928617340303584572474648760

[2,2,4,13,665,3467111,21396320062803,
 658294037732639489281287503,
 22388829144690900907571301740725846339553919136567\
 283158,
 52270258136623375506047479209364617675625309808547\
 11646127635395729507044310223338809286173403035845\
 72474648760]

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Last modified September 3 11:08 EDT 2024. Contains 375657 sequences. (Running on oeis4.)