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A228739 as a simple table

n a(n)
1 8
2 64
3 512
4 3312
5 17088
6 84288
7 410828
8 2037214
9 10282648
10 52493640
11 269103944
12 1379300658
13 7060313768
14 36093818956
15 184394586102
16 941828553348
17 4810728325582
18 24575097951832
19 125549549795310
20 641435496947444

[8,64,512,3312,17088,84288,410828,2037214,
 10282648,52493640,269103944,1379300658,7060313768,
 36093818956,184394586102,941828553348,
 4810728325582,24575097951832,125549549795310,
 641435496947444]

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Last modified January 29 05:09 EST 2022. Contains 350672 sequences. (Running on oeis4.)