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A053906 as a simple table

n a(n)
1 1
2 4
3 26
4 131
5 276
6 881
7 3431
8 81346
9 81619
10 129119
11 132954
12 1292931424 

[1,4,26,131,276,881,3431,81346,81619,129119,
 132954,1292931424]

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Last modified August 14 20:45 EDT 2024. Contains 375167 sequences. (Running on oeis4.)