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A301992 as a simple table

n a(n)
1 0
2 0
3 1
4 50
5 6027
6 1350948
7 486396405
8 256822659990
9 186967652864895
10 179489092842045000
11 219694686618136235625
12 333935935534086791456250
13 617113613582364168765061875
14 1362586861058382580086938587500
15 3542725840051847141662287901708125

[0,0,1,50,6027,1350948,486396405,256822659990,
 186967652864895,179489092842045000,
 219694686618136235625,333935935534086791456250,
 617113613582364168765061875,
 1362586861058382580086938587500,
 3542725840051847141662287901708125]

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Last modified November 29 23:23 EST 2020. Contains 338780 sequences. (Running on oeis4.)