A192341 - OEIS

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A192341 as a simple table

n	a(n)
1	1
2	3
3	27
4	1755
5	6909435
6	106751109312315
7	25481781981232427172041948475
8	1451926371364357751230060437820316313546007023604937430075

[1,3,27,1755,6909435,106751109312315, 25481781981232427172041948475, 14519263713643577512300604378203163135460070236049\ 37430075]