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A172109 as a simple table

n a(n)
1 0
2 2
3 8
4 44
5 308
6 2612
7 25988
8 296564
9 3816548
10 54667412
11 862440068
12 14857100084
13 277474957988
14 5584100659412
15 120462266974148
16 2772968936479604
17 67843210855558628
18 1757952715142990612
19 48093560991292628228

[0,2,8,44,308,2612,25988,296564,3816548,54667412,
 862440068,14857100084,277474957988,5584100659412,
 120462266974148,2772968936479604,
 67843210855558628,1757952715142990612,
 48093560991292628228]

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)