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A251773 as a simple table

n a(n)
1 1142
2 4182
3 12242
4 34934
5 132886
6 430730
7 1317638
8 5134774
9 17297338
10 54845894
11 214950374
12 737930314
13 2379309302
14 9343006742
15 32366662250
16 105198487910
17 413404292870
18 1438370382314
19 4692860538998
20 18447924909462
21 64319132350250

[1142,4182,12242,34934,132886,430730,1317638,
 5134774,17297338,54845894,214950374,737930314,
 2379309302,9343006742,32366662250,105198487910,
 413404292870,1438370382314,4692860538998,
 18447924909462,64319132350250]

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Last modified July 21 21:14 EDT 2019. Contains 325199 sequences. (Running on oeis4.)