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A225557 as a simple table

na(n)
31
49
511
613
716
819
921
1024
1126
1229
1332
1435
1538
1640
1744
1846
1949
2052
2155
2258

[1,9,11,13,16,19,21,24,26,29,32,35,38,40,44,46,49,
 52,55,58]