A172763 - OEIS

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A172763 as a simple table

n	a(n)
1	1
2	580
3	19546975
4	11012437532800
5	53461314050652508000
6	1482500191777802616831698000
7	177485739636656023698217362159890000
8	74896615128945574656737417426177604440960000

[1,580,19546975,11012437532800, 53461314050652508000,1482500191777802616831698000, 177485739636656023698217362159890000, 74896615128945574656737417426177604440960000]