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A084265 as a simple table

na(n)
01
12
26
39
415
520
628
735
845
954
1066
1177
1291
13104
14120
15135
16153
17170
18190
19209
20231
21252
22276
23299
24325
25350
26378
27405
28435
29464
30496
31527
32561
33594
34630
35665
36703
37740
38780
39819
40861
41902
42946
43989
441035
451080
461128
471175
481225
491274
501326
511377
521431
531484

[1,2,6,9,15,20,28,35,45,54,66,77,91,104,120,135,
 153,170,190,209,231,252,276,299,325,350,378,405,
 435,464,496,527,561,594,630,665,703,740,780,819,
 861,902,946,989,1035,1080,1128,1175,1225,1274,
 1326,1377,1431,1484]