A190921 - OEIS

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A190921 as a simple table

n	a(n)
1	1
2	99
3	12721
4	1903102
5	312841383
6	54811120355
7	10054355708671
8	1909325866644096
9	372521441486934113
10	74275858248868186497
11	15075586701977689855707
12	3105668779830679872107622

[1,99,12721,1903102,312841383,54811120355, 10054355708671,1909325866644096, 372521441486934113,74275858248868186497, 15075586701977689855707,3105668779830679872107622]