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A128230 as a simple table

n a(n)
0 1
1 2
2 6
3 25
4 137
5 936
6 7672
7 73361
8 801705
9 9856342
10 134640146
11 2023140417
12 33163934641
13 588936102860
14 11263023492372
15 230783643185881
16 5044101110058737
17 117136294344278346
18 2880200768035996990

[1,2,6,25,137,936,7672,73361,801705,9856342,
 134640146,2023140417,33163934641,588936102860,
 11263023492372,230783643185881,5044101110058737,
 117136294344278346,2880200768035996990]

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)