A172595 - OEIS

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A172595 as a simple table

n	a(n)
1	1
2	14367744720
3	607807501825156719166080
4	3502030404249297872766171625530047385600
5	826383627873354098496906047829953892578069546869459968000

[1,14367744720,607807501825156719166080, 3502030404249297872766171625530047385600, 82638362787335409849690604782995389257806954686945\ 9968000]