A195809 - OEIS

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A195809 as a simple table

n	a(n)
3	615
4	1250
5	3087
6	85702
7	832207
8	964411
9	75516831
10	87752352
11	2247987605
12	32183551352
13	622344644563
14	721258992031
15	56497436627651

[615,1250,3087,85702,832207,964411,75516831, 87752352,2247987605,32183551352,622344644563, 721258992031,56497436627651]