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A256203 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 24
5 119
6 694
7 4581
8 33283
9 260805
10 2171393
11 18994464
12 173094540
13 1632480259

[1,1,2,6,24,119,694,4581,33283,260805,2171393,
 18994464,173094540,1632480259]

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Last modified October 13 16:50 EDT 2019. Contains 327968 sequences. (Running on oeis4.)