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A209648 as a simple table

na(n)
122
2484
32354
47128
516830
634012
761754
8103664
9163878
10247060
11358402
12503624
13688974
14921228
151207690
161556192
171975094
182473284
193060178
203745720
214540382
225455164
236501594
247691728
259038150
2610553972
2712252834
2814148904
2916256878

[22,484,2354,7128,16830,34012,61754,103664,163878,
 247060,358402,503624,688974,921228,1207690,
 1556192,1975094,2473284,3060178,3745720,4540382,
 5455164,6501594,7691728,9038150,10553972,12252834,
 14148904,16256878]