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A278893 as a simple table

n a(n)
1 56
2 389640
3 518626568
4 430110958155
5 273949132717772
6 143827898685401892
7 64434873104394812016
8 25210227731914720632036
9 8773051977547229666591720
10 2756820326309288648206048280
11 792154472658215852314325527168

[56,389640,518626568,430110958155,273949132717772,
 143827898685401892,64434873104394812016,
 25210227731914720632036,8773051977547229666591720,
 2756820326309288648206048280,
 792154472658215852314325527168]

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Last modified September 23 11:53 EDT 2020. Contains 337310 sequences. (Running on oeis4.)