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A047680 as a simple table

n a(n)
1 1
2 28
3 342736
4 29398976
5 22841912576
6 495449389339648
7 113828913905979392
8 4138783908783021080576
9 226044736813811127599528869888
10 35882867158508587149623987273728
11 5564179808875681941887049052192768
12 197363311803624016534960016288517315362816 

[1,28,342736,29398976,22841912576,495449389339648,
 113828913905979392,4138783908783021080576,
 226044736813811127599528869888,
 35882867158508587149623987273728,
 5564179808875681941887049052192768,
 197363311803624016534960016288517315362816]

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Last modified April 19 15:34 EDT 2024. Contains 371794 sequences. (Running on oeis4.)