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A197158 as a simple table

n a(n)
1 2
2 5
3 16
4 57
5 212
6 817
7 3232
8 13018
9 53176
10 219680
11 915928
12 3848079
13 16271384
14 69183099
15 295561620 

[2,5,16,57,212,817,3232,13018,53176,219680,915928,
 3848079,16271384,69183099,295561620]

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Last modified April 18 16:22 EDT 2024. Contains 371780 sequences. (Running on oeis4.)