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A123415 as a simple table

n a(n)
1 1
2 2
3 4
4 11
5 33
6 139
7 737
8 5220
9 47299
10 542268 

[1,2,4,11,33,139,737,5220,47299,542268]

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Last modified September 26 15:09 EDT 2023. Contains 365660 sequences. (Running on oeis4.)