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A233718 as a simple table

n a(n)
1 280
2 1820
3 11016
4 68828
5 423220
6 2624872
7 16201200
8 100277820
9 619644916
10 3832773404
11 23693063108
12 146517647480
13 905857050536
14 5601325392044
15 34632490183556
16 214141349297724
17 1324043851903528
18 8186789590614456

[280,1820,11016,68828,423220,2624872,16201200,
 100277820,619644916,3832773404,23693063108,
 146517647480,905857050536,5601325392044,
 34632490183556,214141349297724,1324043851903528,
 8186789590614456]

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Last modified May 27 23:25 EDT 2023. Contains 362992 sequences. (Running on oeis4.)