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A219895 as a simple table

n a(n)
7 3
8 26
9 1547
10 146487
11 16018987
12 1985766270
13 278601715904

[3,26,1547,146487,16018987,1985766270,
 278601715904]

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Last modified May 7 12:11 EDT 2024. Contains 372303 sequences. (Running on oeis4.)