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A340528 as a simple table

na(n)
10
21
33
45
510
613
720
825
934
1041
1152
1261
1374
1485
15100
16113
17130
18145
19164
20181
21202
22221
23244
24265
25290
26313
27340
28365
29394
30421
31452
32481
33514
34545
35580
36613
37650
38685
39724
40761
41802
42841
43884
44925
45970
461013
471060
481105
491154
501201
511252
521301
531354
541405
551460
561513

[0,1,3,5,10,13,20,25,34,41,52,61,74,85,100,113,
 130,145,164,181,202,221,244,265,290,313,340,365,
 394,421,452,481,514,545,580,613,650,685,724,761,
 802,841,884,925,970,1013,1060,1105,1154,1201,1252,
 1301,1354,1405,1460,1513]