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A223941 as a simple table

n a(n)
1 420
2 55440
3 2042040
4 23931600
5 75698280
6 142334216640
7 1877686881840
8 185643608470320
9 2137147184560080

[420,55440,2042040,23931600,75698280,142334216640,
 1877686881840,185643608470320,2137147184560080]

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Last modified April 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)