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A237740 as a simple table

n a(n)
1 68
2 290
3 1412
4 5708
5 25832
6 103538
7 447332
8 1790084
9 7524728
10 30101684
11 124437224
12 497759192
13 2036030288
14 8144159762
15 33083125028
16 132332645972
17 535071925208
18 2140288255100
19 8626608745592
20 34506437098664
21 138775530904496

[68,290,1412,5708,25832,103538,447332,1790084,
 7524728,30101684,124437224,497759192,2036030288,
 8144159762,33083125028,132332645972,535071925208,
 2140288255100,8626608745592,34506437098664,
 138775530904496]

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Last modified May 22 20:45 EDT 2024. Contains 372758 sequences. (Running on oeis4.)