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A025730 as a simple table

na(n)
11
23
36
410
515
621
728
837
947
1058
1170
1283
1397
14113
15130
16148
17167
18187
19208
20231
21255
22280
23306
24333
25361
26391
27422
28454
29487
30521
31556
32592
33630
34669
35709
36750
37792
38835
39880
40926
41973
421021
431070
441120
451172
461225
471279
481334
491390
501447
511506
521566
531627
541689

[1,3,6,10,15,21,28,37,47,58,70,83,97,113,130,148,
 167,187,208,231,255,280,306,333,361,391,422,454,
 487,521,556,592,630,669,709,750,792,835,880,926,
 973,1021,1070,1120,1172,1225,1279,1334,1390,1447,
 1506,1566,1627,1689]