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A027143 as a simple table

n a(n)
3 57
4 486
5 4117
6 34760
7 293086
8 2471917
9 20870169
10 176467252
11 1494672812
12 12682766442
13 107814252502
14 918166760699
15 7832993240285
16 66936986352534
17 572934789920969
18 4911478255448828
19 42165255645650628
20 362494201554529232
21 3120475613849051712
22 26895832224848130557

[57,486,4117,34760,293086,2471917,20870169,
 176467252,1494672812,12682766442,107814252502,
 918166760699,7832993240285,66936986352534,
 572934789920969,4911478255448828,
 42165255645650628,362494201554529232,
 3120475613849051712,26895832224848130557]

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Last modified August 7 20:35 EDT 2022. Contains 355994 sequences. (Running on oeis4.)