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A171338 as a simple table

n a(n)
1 1
2 2
3 6
4 24
5 104
6 622
7 4324
8 34548
9 310594
10 3164990
11 35155038
12 423974396
13 5541016736
14 78238104000 

[1,2,6,24,104,622,4324,34548,310594,3164990,
 35155038,423974396,5541016736,78238104000]

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Last modified September 16 02:52 EDT 2024. Contains 375959 sequences. (Running on oeis4.)