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A223830 as a simple table

na(n)
1239
257121
35995781
4320423509
510278415020
6222531132820
73529435151262
843488595659874
9434747752662172
103644070166673656
1126274461520805174
12166299611386240948
13939231697288055902
144797427977710396544

[239,57121,5995781,320423509,10278415020,
 222531132820,3529435151262,43488595659874,
 434747752662172,3644070166673656,
 26274461520805174,166299611386240948,
 939231697288055902,4797427977710396544]