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A220543 as a simple table

n a(n)
1 4
2 38
3 395
4 3778
5 32126
6 261042
7 2095121
8 16773300
9 134209760
10 1073726672
11 8589906710
12 68719426436
13 549755721410
14 4398046339192
15 35184371768852
16 281474976122716
17 2251799812612122
18 18014398507523968
19 144115188072265072

[4,38,395,3778,32126,261042,2095121,16773300,
 134209760,1073726672,8589906710,68719426436,
 549755721410,4398046339192,35184371768852,
 281474976122716,2251799812612122,
 18014398507523968,144115188072265072]

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Last modified April 18 20:10 EDT 2024. Contains 371781 sequences. (Running on oeis4.)