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A212531 as a simple table

n a(n)
1 1
2 2
3 5
4 10
5 21
6 40
7 83
8 161
9 331
10 644
11 1102
12 3627
13 5646
14 10083
15 29188
16 53681
17 84121
18 237453
19 373114
20 1400757
21 2443494

[1,2,5,10,21,40,83,161,331,644,1102,3627,5646,
 10083,29188,53681,84121,237453,373114,1400757,
 2443494]

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Last modified September 21 19:39 EDT 2019. Contains 327279 sequences. (Running on oeis4.)