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A019054 as a simple table

na(n)
23
36
421
5159
61002
75426
832678
9213283
101389400
119052394
1260114080
13406302200
142775970886
1519129099772
16132872261760

[3,6,21,159,1002,5426,32678,213283,1389400,
 9052394,60114080,406302200,2775970886,19129099772,
 132872261760]