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A032068 as a simple table

n a(n)
1 2
2 1
3 2
4 7
5 22
6 85
7 344
8 1408
9 5914
10 25394
11 110818
12 488688
13 2178594
14 9797950
15 44406134
16 202591861
17 929716110
18 4288808485
19 19876422076
20 92501558277
21 432109230664
22 2025444499805
23 9523528005822
24 44906724639089

[2,1,2,7,22,85,344,1408,5914,25394,110818,488688,
 2178594,9797950,44406134,202591861,929716110,
 4288808485,19876422076,92501558277,432109230664,
 2025444499805,9523528005822,44906724639089]

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)