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A224728 as a simple table

na(n)
12052
21623
31623
42471
51920
62471
73506
82493
92493
103506
114257
122863
133092
142863
154257
165737
173123
183502
193502
203123
215737
228117
234129
243775
253924
263775
274129
288117
2912306
305711
314868
324209
334209
344868
355711
3612306
3718187
387604
396540
405371
414498

[2052,1623,1623,2471,1920,2471,3506,2493,2493,
 3506,4257,2863,3092,2863,4257,5737,3123,3502,3502,
 3123,5737,8117,4129,3775,3924,3775,4129,8117,
 12306,5711,4868,4209,4209,4868,5711,12306,18187,
 7604,6540,5371,4498]