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A002579 as a simple table

na(n)
13
25
38
412
517
623
730
837
945
1054
1164
1275
1387
1499
15112
16126
17141
18157
19174
20191
21209
22228
23248
24269
25291
26313
27336
28360
29385
30411
31438
32465
33493
34522
35552
36583
37615
38647
39680
40714
41749
42785
43822
44859
45897
46936
47976
481017
491059
501101
511144

[3,5,8,12,17,23,30,37,45,54,64,75,87,99,112,126,
 141,157,174,191,209,228,248,269,291,313,336,360,
 385,411,438,465,493,522,552,583,615,647,680,714,
 749,785,822,859,897,936,976,1017,1059,1101,1144]