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A224174 as a simple table

n a(n)
1 20
2 400
3 4739
4 38561
5 242114
6 1253770
7 5588411
8 22075529
9 78911656
10 259222964
11 791787532
12 2269535600
13 6149706181
14 15847969147
15 39036356744
16 92295124070
17 210220319550
18 462719488690
19 986952548003
20 2044823738533
21 4124042889158

[20,400,4739,38561,242114,1253770,5588411,
 22075529,78911656,259222964,791787532,2269535600,
 6149706181,15847969147,39036356744,92295124070,
 210220319550,462719488690,986952548003,
 2044823738533,4124042889158]

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Last modified May 15 23:51 EDT 2022. Contains 353687 sequences. (Running on oeis4.)