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A217866 as a simple table

n a(n)
1 1
2 5
3 18
4 46
5 137
6 384
7 1059
8 2905
9 8066
10 21883
11 59743
12 162247
13 441824 

[1,5,18,46,137,384,1059,2905,8066,21883,59743,
 162247,441824]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)