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A047039 as a simple table

n a(n)
0 1
1 1
2 4
3 22
4 126
5 751
6 4595
7 28514
8 179277
9 1136405
10 7256229
11 46583010
12 300438175
13 1944986187
14 12632217312
15 82269089182
16 537071072123
17 3513452296105
18 23026993173298
19 151165338147804
20 993811676366531
21 6542280703133297

[1,1,4,22,126,751,4595,28514,179277,1136405,
 7256229,46583010,300438175,1944986187,12632217312,
 82269089182,537071072123,3513452296105,
 23026993173298,151165338147804,993811676366531,
 6542280703133297]

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)