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A283821 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 8
11 15
12 134
13 2143
14 289304
15 620267775
16 179446568646374
17 111304924045117731444223
18 19973286693341774343274474438923641617
19 277890644791720860549000282813744291843989379146578350083761

[1,1,1,1,1,1,1,1,1,8,15,134,2143,289304,620267775,
 179446568646374,111304924045117731444223,
 19973286693341774343274474438923641617,
 27789064479172086054900028281374429184398937914657\
 8350083761]

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Last modified August 18 13:12 EDT 2019. Contains 326100 sequences. (Running on oeis4.)