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A019023 as a simple table

n a(n)
2 2
3 8
4 34
5 162
6 1080
7 6383
8 41775
9 273618
10 1839706
11 12583014
12 87182465
13 611826394
14 4336470628
15 31017292666
16 223585685378 

[2,8,34,162,1080,6383,41775,273618,1839706,
 12583014,87182465,611826394,4336470628,
 31017292666,223585685378]

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Last modified June 30 07:07 EDT 2024. Contains 373861 sequences. (Running on oeis4.)