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A177780 as a simple table

n a(n)
1 1
2 4
3 60
4 2496
5 276240
6 83893248
7 72508524480
8 182341191057408
9 1348995112077074688
10 29528107099434111467520
11 1918583757808453356238126080
12 370812729559366641806998574727168

[1,4,60,2496,276240,83893248,72508524480,
 182341191057408,1348995112077074688,
 29528107099434111467520,
 1918583757808453356238126080,
 370812729559366641806998574727168]

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Last modified July 12 17:10 EDT 2020. Contains 335665 sequences. (Running on oeis4.)