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A063979 as a simple table

n a(n)
0 1
1 1
2 1
3 3
4 24
5 199
6 1747
7 16474
8 168187
9 1859934
10 22228104
11 286078171
12 3949867548
13 58284826485
14 915905054360
15 15276520209206
16 269617872744249
17 5021159048900643
18 98417586560408168
19 2025488254833817394
20 43675043585825292775
21 984729344827900257489
22 23172929656443132617906

[1,1,1,3,24,199,1747,16474,168187,1859934,
 22228104,286078171,3949867548,58284826485,
 915905054360,15276520209206,269617872744249,
 5021159048900643,98417586560408168,
 2025488254833817394,43675043585825292775,
 984729344827900257489,23172929656443132617906]

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Last modified April 24 05:44 EDT 2024. Contains 371918 sequences. (Running on oeis4.)