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A147912 as a simple table

n a(n)
1 1
2 2
3 6
4 24
5 96
6 456
7 2134
8 11650
9 74546
10 530962
11 3285816
12 22665948
13 187716490
14 1693665742
15 13845532508
16 121701474366 

[1,2,6,24,96,456,2134,11650,74546,530962,3285816,
 22665948,187716490,1693665742,13845532508,
 121701474366]

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Last modified August 19 15:40 EDT 2022. Contains 356229 sequences. (Running on oeis4.)