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A254505 as a simple table

n a(n)
1 512
2 2703
3 12730
4 55904
5 221858
6 833037
7 2977462
8 10225464
9 34028886
10 110280168
11 349551666
12 1087417895
13 3328908758
14 10051170955
15 29985882752
16 88525404974
17 258951023734
18 751340000125
19 2164314393804
20 6194580296317
21 17628054712962

[512,2703,12730,55904,221858,833037,2977462,
 10225464,34028886,110280168,349551666,1087417895,
 3328908758,10051170955,29985882752,88525404974,
 258951023734,751340000125,2164314393804,
 6194580296317,17628054712962]

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Last modified January 29 06:03 EST 2023. Contains 359915 sequences. (Running on oeis4.)