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A195642 as a simple table

na(n)
11
21
33
419
5391
625532
75539434
84116036800
910694128575819
1098630958757213465
113267417937114919996252

[1,1,3,19,391,25532,5539434,4116036800,
 10694128575819,98630958757213465,
 3267417937114919996252]