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A259352 as a simple table

n a(n)
1 1
2 1
3 3
4 10
5 44
6 249
7 1513
8 10002
9 68455
10 482571
11 3470782
12 25391403
13 188353848
14 1414150643
15 10728851795
16 82151290333
17 634203702080
18 4931994064073
19 38607981904156
20 304032521364835

[1,1,3,10,44,249,1513,10002,68455,482571,3470782,
 25391403,188353848,1414150643,10728851795,
 82151290333,634203702080,4931994064073,
 38607981904156,304032521364835]

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Last modified June 15 02:56 EDT 2021. Contains 345042 sequences. (Running on oeis4.)