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A063389 as a simple table

n a(n)
1 2
2 18
3 540
4 75168
5 35803296
6 52295889024
7 165440621998080
8 1667054559389773824
9 57054517078704967876608
10 7229212455140774474869112832
11 3089828410800189940613202019614720 

[2,18,540,75168,35803296,52295889024,
 165440621998080,1667054559389773824,
 57054517078704967876608,
 7229212455140774474869112832,
 3089828410800189940613202019614720]

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Last modified May 26 21:09 EDT 2024. Contains 372844 sequences. (Running on oeis4.)