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A356689 as a simple table

n a(n)
0 1
1 2
2 20
3 19887
4 4297096180
5 298028721722131825
6 10314430386434427534836297166
7 256923580889667624113335512704714686054849
8 6277101737079381675512518990977258744796239498871290255000 

[1,2,20,19887,4297096180,298028721722131825,
 10314430386434427534836297166,
 256923580889667624113335512704714686054849,
 62771017370793816755125189909772587447962394988712\
 90255000]

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Last modified August 9 22:15 EDT 2024. Contains 375044 sequences. (Running on oeis4.)