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A301533 as a simple table

n a(n)
1 1
2 12
3 15120
4 389188800
5 64117105007155200
6 10347762119105166852096000
7 1389578338099539041754702978576000000
8 4713072346356421489071058466945878500353772748800000000

[1,12,15120,389188800,64117105007155200,
 10347762119105166852096000,
 1389578338099539041754702978576000000,
 47130723463564214890710584669458785003537727488000\
 00000]

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Last modified January 27 18:52 EST 2023. Contains 359845 sequences. (Running on oeis4.)