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A228773 as a simple table

n a(n)
1 0
2 1
3 1
4 3
5 10
6 61
7 564
8 7593
9 123874
10 2262877
11 44190279
12 904777809
13 19207129217

[0,1,1,3,10,61,564,7593,123874,2262877,44190279,
 904777809,19207129217]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)