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A222513 as a simple table

n a(n)
1 0
2 8
3 87
4 497
5 2066
6 17674
7 81537
8 800040
9 3877847
10 39636760
11 197167116
12 2044535652
13 10266459303
14 107207411996
15 541084890084
16 5674279900642
17 28738733251005
18 302282496834886
19 1535249200603440
20 16185756541061498

[0,8,87,497,2066,17674,81537,800040,3877847,
 39636760,197167116,2044535652,10266459303,
 107207411996,541084890084,5674279900642,
 28738733251005,302282496834886,1535249200603440,
 16185756541061498]

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Last modified October 18 17:00 EDT 2021. Contains 348068 sequences. (Running on oeis4.)