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A090255 as a simple table

n a(n)
1 2
2 2
3 3
4 5
5 15
6 99
7 3104
8 1613472
9 149269319665
10 207162000925232194266
11 17642840640521548549676431333825629593
12 579289575474623471411397351475238520233285813531781943024771938812919

[2,2,3,5,15,99,3104,1613472,149269319665,
 207162000925232194266,
 17642840640521548549676431333825629593,
 57928957547462347141139735147523852023328581353178\
 1943024771938812919]

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Last modified April 16 10:23 EDT 2024. Contains 371699 sequences. (Running on oeis4.)