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A270604 as a simple table

n a(n)
1 0
2 120
3 23448
4 13177740
5 25162747992
6 176610474548304
7 4757551848002860896
8 504235830402554520290820
9 213082697840230591135069403580 

[0,120,23448,13177740,25162747992,176610474548304,
 4757551848002860896,504235830402554520290820,
 213082697840230591135069403580]

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Last modified April 23 02:53 EDT 2024. Contains 371906 sequences. (Running on oeis4.)