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A250137 as a simple table

na(n)
1216
2986
34368
419446
579200
6311498
71219944
84617079
917036428
1062297886
11224152970
12793463094
132782588100
149662944274
1533203799944
16113195928313
17383180556700
181287749650878
194300782679270
2014285051453226
2147196108008844

[216,986,4368,19446,79200,311498,1219944,4617079,
 17036428,62297886,224152970,793463094,2782588100,
 9662944274,33203799944,113195928313,383180556700,
 1287749650878,4300782679270,14285051453226,
 47196108008844]