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A065577 as a simple table

n a(n)
1 2
2 6
3 28
4 127
5 810
6 5402
7 38807
8 291400
9 2274205
10 18200488
11 149091160
12 1243722370
13 10533150855
14 90350630388 

[2,6,28,127,810,5402,38807,291400,2274205,
 18200488,149091160,1243722370,10533150855,
 90350630388]

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Last modified May 7 20:13 EDT 2024. Contains 372317 sequences. (Running on oeis4.)