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A281340 as a simple table

na(n)
18
285
3193
4607
51892
65868
718189
856154
9173062
10534110
111650156
125098879
1315751692
1448653245
15150278118
16464200703
171433942077
184429534747
1913682972108
2042266936805
21130563482897
22403314526070
231245852260586
243848479634326

[8,85,193,607,1892,5868,18189,56154,173062,534110,
 1650156,5098879,15751692,48653245,150278118,
 464200703,1433942077,4429534747,13682972108,
 42266936805,130563482897,403314526070,
 1245852260586,3848479634326]