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A199562 as a simple table

na(n)
05
137
2325
32917
426245
5236197
62125765
719131877
8172186885
91549681957
1013947137605
11125524238437
121129718145925
1310167463313317
1491507169819845
15823564528378597
167412080755407365
1766708726798666277
18600378541187996485

[5,37,325,2917,26245,236197,2125765,19131877,
 172186885,1549681957,13947137605,125524238437,
 1129718145925,10167463313317,91507169819845,
 823564528378597,7412080755407365,
 66708726798666277,600378541187996485]