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A217886 as a simple table

n a(n)
1 1
2 3
3 11
4 44
5 192
6 892
7 4400
8 23086
9 129250
10 773868
11 4953208
12 33778104
13 244102608
14 1858257232
15 14822495192 

[1,3,11,44,192,892,4400,23086,129250,773868,
 4953208,33778104,244102608,1858257232,14822495192]

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Last modified April 24 12:31 EDT 2024. Contains 371937 sequences. (Running on oeis4.)