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A033436 as a simple table

na(n)
00
10
21
33
46
59
613
718
824
930
1037
1145
1254
1363
1473
1584
1696
17108
18121
19135
20150
21165
22181
23198
24216
25234
26253
27273
28294
29315
30337
31360
32384
33408
34433
35459
36486
37513
38541
39570
40600
41630
42661
43693
44726
45759
46793
47828

[0,0,1,3,6,9,13,18,24,30,37,45,54,63,73,84,96,108,
 121,135,150,165,181,198,216,234,253,273,294,315,
 337,360,384,408,433,459,486,513,541,570,600,630,
 661,693,726,759,793,828]