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A123406 as a simple table

n a(n)
1 1
2 2
3 4
4 11
5 33
6 144
7 826
8 6836
9 76322
10 1126575
11 21410245
12 521199672 

[1,2,4,11,33,144,826,6836,76322,1126575,21410245,
 521199672]

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Last modified April 23 15:20 EDT 2024. Contains 371916 sequences. (Running on oeis4.)