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A277378 as a simple table

n a(n)
0 1
1 2
2 9
3 50
4 361
5 3042
6 29929
7 331298
8 4100625
9 55777922
10 828691369
11 13316140818
12 230256982201
13 4257449540450
14 83834039024649
15 1750225301567618
16 38614608429012001
17 897325298084953602
18 21904718673762721225
19 560258287738117292018
20 14981472258320814527241

[1,2,9,50,361,3042,29929,331298,4100625,55777922,
 828691369,13316140818,230256982201,4257449540450,
 83834039024649,1750225301567618,38614608429012001,
 897325298084953602,21904718673762721225,
 560258287738117292018,14981472258320814527241]

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Last modified August 3 19:17 EDT 2021. Contains 346441 sequences. (Running on oeis4.)