A172703 - OEIS

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A172703 as a simple table

n	a(n)
1	1
2	73789
3	1820016119376
4	2248575441654260591964
5	53234949493963470885785898137100
6	13495472374334172242190334756526625738793200

[1,73789,1820016119376,2248575441654260591964, 53234949493963470885785898137100, 13495472374334172242190334756526625738793200]