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A256206 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 24
5 119
6 694
7 4581
8 33287
9 260967
10 2175379
11 19072271
12 174426353
13 1653484169

[1,1,2,6,24,119,694,4581,33287,260967,2175379,
 19072271,174426353,1653484169]

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Last modified August 20 10:05 EDT 2019. Contains 326149 sequences. (Running on oeis4.)