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A084180 as a simple table

n a(n)
0 0
1 2
2 10
3 42
4 170
5 682
6 2730
7 10922
8 43690
9 174762
10 699050
11 2796202
12 11184810 

[0,2,10,42,170,682,2730,10922,43690,174762,699050,
 2796202,11184810]

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Last modified May 13 05:55 EDT 2024. Contains 372498 sequences. (Running on oeis4.)