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A224845 as a simple table

n a(n)
1 1
2 2
3 4
4 10
5 29
6 85
7 254
8 762
9 2285
10 6854
11 20562
12 61684
13 185052

[1,2,4,10,29,85,254,762,2285,6854,20562,61684,
 185052]

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Last modified September 26 16:43 EDT 2020. Contains 337374 sequences. (Running on oeis4.)