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A086200 as a simple table

n a(n)
1 1
2 3
3 15
4 66
5 406
6 2775
7 19900
8 152076
9 1206681
10 9841266
11 82336528
12 702993756
13 6105180250
14 53822344278
15 480681790786
16 4342078862605
17 39621836138886
18 364831810979041
19 3386667673687950
20 31669036266203766

[1,3,15,66,406,2775,19900,152076,1206681,9841266,
 82336528,702993756,6105180250,53822344278,
 480681790786,4342078862605,39621836138886,
 364831810979041,3386667673687950,
 31669036266203766]

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Last modified March 29 10:22 EDT 2024. Contains 371268 sequences. (Running on oeis4.)