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A111201 as a simple table

na(n)
11
24
38
412
518
625
733
841
951
1062
1174
1286
13100
14115
15131
16148
17166
18184
19204
20225
21247
22270
23294
24319
25344
26371
27399
28428
29458
30489
31521
32554
33587
34622
35658
36695
37733
38772
39812
40853
41894
42937
43981
441026
451072
461119
471167
481216
491266
501317
511368
521421
531475

[1,4,8,12,18,25,33,41,51,62,74,86,100,115,131,148,
 166,184,204,225,247,270,294,319,344,371,399,428,
 458,489,521,554,587,622,658,695,733,772,812,853,
 894,937,981,1026,1072,1119,1167,1216,1266,1317,
 1368,1421,1475]