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A350221 as a simple table

na(n)
11
23
38
412
521
629
740
852
967
1083
11100
12116
13140
14160
15185
16210
17237
18264
19298
20327
21363
22397
23435
24472
25514
26557
27602
28644
29690
30741
31791
32837
33897
34950
351009
361063
371126
381185
391253
401313
411381
421450
431521
441593
451667
461739
471820
481894
491973
502054
512140

[1,3,8,12,21,29,40,52,67,83,100,116,140,160,185,
 210,237,264,298,327,363,397,435,472,514,557,602,
 644,690,741,791,837,897,950,1009,1063,1126,1185,
 1253,1313,1381,1450,1521,1593,1667,1739,1820,1894,
 1973,2054,2140]