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A223614 as a simple table

n a(n)
1 2
2 16
3 240
4 4466
5 89630
6 1856100
7 39162020
8 840122330
9 18350758538
10 409124396540
11 9333564282142
12 218396645933584
13 5252293916506694

[2,16,240,4466,89630,1856100,39162020,840122330,
 18350758538,409124396540,9333564282142,
 218396645933584,5252293916506694]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)