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A118747 as a simple table

n a(n)
1 2
2 6
3 30
4 210
5 1470
6 16170
7 210210
8 2732730
9 46456410
10 882671790
11 16770764010
12 385727572230
13 8871734161290
14 204049885709670
15 5917446685580430
16 183440847252993330
17 5686666264842793230
18 176286654210126590130

[2,6,30,210,1470,16170,210210,2732730,46456410,
 882671790,16770764010,385727572230,8871734161290,
 204049885709670,5917446685580430,
 183440847252993330,5686666264842793230,
 176286654210126590130]

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Last modified September 12 22:20 EDT 2024. Contains 375855 sequences. (Running on oeis4.)