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A351580 as a simple table

n a(n)
1 1
2 2
3 21
4 2600
5 9078630
6 1634935320144
7 22831938997720867560
8 34390564970975286088924022400
9 7457911916650283082000186530740981347120
10 300682790088737748950725540713718365319268411170195200
11 2830053444386286847574443631356044745870287426798365860653876609636480 

[1,2,21,2600,9078630,1634935320144,
 22831938997720867560,
 34390564970975286088924022400,
 7457911916650283082000186530740981347120,
 30068279008873774895072554071371836531926841117019\
 5200,
 28300534443862868475744436313560447458702874267983\
 65860653876609636480]

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Last modified September 11 23:47 EDT 2024. Contains 375842 sequences. (Running on oeis4.)