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A112873 as a simple table

na(n)
12
25
39
414
520
627
737
849
963
1079
1197
12117
13139
14163
15189
16219
17252
18288
19327
20369
21414
22462
23513
24567
25624
26684
27747
28815
29887
30963
311043
321127
331215
341307
351403
361503
371607
381715
391827
401943
412063
422187
432317
442452
452592
462737
472887
483042
493202
503367
513537

[2,5,9,14,20,27,37,49,63,79,97,117,139,163,189,
 219,252,288,327,369,414,462,513,567,624,684,747,
 815,887,963,1043,1127,1215,1307,1403,1503,1607,
 1715,1827,1943,2063,2187,2317,2452,2592,2737,2887,
 3042,3202,3367,3537]