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A197157 as a simple table

n a(n)
1 1
2 4
3 8
4 34
5 106
6 430
7 1616
8 6594
9 26588
10 110188
11 457964
12 1925498
13 8135692
14 34597729
15 147780810 

[1,4,8,34,106,430,1616,6594,26588,110188,457964,
 1925498,8135692,34597729,147780810]

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Last modified April 25 12:28 EDT 2024. Contains 371969 sequences. (Running on oeis4.)