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A287025 as a simple table

n a(n)
1 0
2 1
3 2
4 4
5 8
6 19
7 56
8 208
9 1160
10 11240
11 218653
12 8226984 

[0,1,2,4,8,19,56,208,1160,11240,218653,8226984]

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Last modified May 15 22:47 EDT 2024. Contains 372549 sequences. (Running on oeis4.)