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A326513 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 12
5 40
6 154
7 650
8 3024
9 15110
10 81538
11 468494
12 2863340 

[1,1,2,4,12,40,154,650,3024,15110,81538,468494,
 2863340]

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Last modified May 1 09:39 EDT 2024. Contains 372163 sequences. (Running on oeis4.)