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A254036 as a simple table

n a(n)
0 1
1 1
2 1
3 3
4 9
5 33
6 128
7 564
8 2681
9 13845
10 76661
11 453025
12 2839968
13 18805590

[1,1,1,3,9,33,128,564,2681,13845,76661,453025,
 2839968,18805590]

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Last modified May 12 11:29 EDT 2024. Contains 372475 sequences. (Running on oeis4.)