A366513 - OEIS

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A366513 as a simple table

n	a(n)
1	2
2	16
3	512
4	5184
5	159588
6	6041764
7	2147569224
8	351791334400
9	528775298642599
10	238297327919927329
11	1643642864931094594560

[2,16,512,5184,159588,6041764,2147569224, 351791334400,528775298642599,238297327919927329, 1643642864931094594560]