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A127963 as a simple table

na(n)
12
23
34
46
57
69
710
812
916
1022
1131
1240
1351
1464
1584
1696
17100
18157
19174
20351
21855
221309
231770
242904
255251
265346
275640
286196
297240
3021369
3141670
3247685
3358620
3463516
3569469
3670540
37133509
38134994
39187161
40493096
412015700

[2,3,4,6,7,9,10,12,16,22,31,40,51,64,84,96,100,
 157,174,351,855,1309,1770,2904,5251,5346,5640,
 6196,7240,21369,41670,47685,58620,63516,69469,
 70540,133509,134994,187161,493096,2015700]