A172870 - OEIS

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A172870 as a simple table

n	a(n)
1	1
2	73789
3	14823083089
4	4855940642591941
5	2124709987334672961301
6	1038651765223403011577901181
7	571578325753594187243824601539009
8	346070048320872370739353554842532631189

[1,73789,14823083089,4855940642591941, 2124709987334672961301, 1038651765223403011577901181, 571578325753594187243824601539009, 346070048320872370739353554842532631189]