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A056841 as a simple table

n a(n)
1 1
2 1
3 2
4 5
5 15
6 54
7 212
8 908
9 4011
10 18260

[1,1,2,5,15,54,212,908,4011,18260]

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Last modified March 25 16:38 EDT 2019. Contains 321474 sequences. (Running on oeis4.)