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A356254 as a simple table

na(n)
10
21
33
45
59
613
718
823
931
1039
1147
1256
1367
1478
1591
16103
17119
18135
19150
20167
21185
22203
23223
24243
25266
26289
27313
28337
29364
30391
31420
32447
33479
34511
35541
36574
37607
38640
39675
40711
41749
42787
43826
44865
45907
46949
47993
481036
491083
501130
511177
521225
531275
541325
551377

[0,1,3,5,9,13,18,23,31,39,47,56,67,78,91,103,119,
 135,150,167,185,203,223,243,266,289,313,337,364,
 391,420,447,479,511,541,574,607,640,675,711,749,
 787,826,865,907,949,993,1036,1083,1130,1177,1225,
 1275,1325,1377]