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A145405 as a simple table

n a(n)
1 20
2 2984
3 340852
4 40071100
5 4696965476
6 550730736140
7 64572426811780
8 7571054816109868
9 887698562638519076
10 104081767587749759756
11 12203482981057263416260
12 1430846154730977823707628
13 167765278289617542860512868
14 19670310820391775621430114508 

[20,2984,340852,40071100,4696965476,550730736140,
 64572426811780,7571054816109868,
 887698562638519076,104081767587749759756,
 12203482981057263416260,1430846154730977823707628,
 167765278289617542860512868,
 19670310820391775621430114508]

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Last modified April 16 05:35 EDT 2024. Contains 371697 sequences. (Running on oeis4.)