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A143557 as a simple table

n a(n)
0 1
1 1
2 8
3 32
4 280
5 1728
6 16744
7 117856
8 1202552
9 9044352
10 95203784
11 745451168
12 8011827928
13 64459117632
14 703166465320
15 5769038826208
16 63639465830712
17 529889242505984
18 5896324892061576
19 49665617425122592
20 556508207889107096

[1,1,8,32,280,1728,16744,117856,1202552,9044352,
 95203784,745451168,8011827928,64459117632,
 703166465320,5769038826208,63639465830712,
 529889242505984,5896324892061576,
 49665617425122592,556508207889107096]

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Last modified March 30 03:01 EDT 2024. Contains 371289 sequences. (Running on oeis4.)