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A093990
as a simple table
n
a(n)
1
1
2
2
3
8
4
68
5
550
6
5404
7
54768
8
581868
9
6329407
10
70335294
11
794064734
12
9083306888
13
105021662154
[1,2,8,68,550,5404,54768,581868,6329407,70335294, 794064734,9083306888,105021662154]
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Last modified March 29 04:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)