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A223579 as a simple table

n a(n)
1 4
2 256
3 204800
4 1331200000
5 51224576000000
6 9249109442560000000
7 6561595711835340800000000
8 15895655898196756312883200000000
9 117344147980184981008663340646400000000 

[4,256,204800,1331200000,51224576000000,
 9249109442560000000,6561595711835340800000000,
 15895655898196756312883200000000,
 117344147980184981008663340646400000000]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)