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A074562 as a simple table

n a(n)
0 3
1 16
2 90
3 532
4 3282
5 20956
6 137370
7 918052
8 6220962
9 42568876
10 293289450
11 2030349172
12 14102205042
13 98176822396
14 684595023930
15 4779152829892
16 33389813427522
17 233410633309516
18 1632297014652810
19 11418243549608212

[3,16,90,532,3282,20956,137370,918052,6220962,
 42568876,293289450,2030349172,14102205042,
 98176822396,684595023930,4779152829892,
 33389813427522,233410633309516,1632297014652810,
 11418243549608212]

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)