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A033444 as a simple table

na(n)
00
10
21
33
46
510
615
721
828
936
1045
1155
1266
1377
1489
15102
16116
17131
18147
19164
20182
21201
22221
23242
24264
25286
26309
27333
28358
29384
30411
31439
32468
33498
34529
35561
36594
37627
38661
39696
40732
41769
42807
43846
44886
45927
46969
471012
481056
491100
501145
511191
521238
531286

[0,0,1,3,6,10,15,21,28,36,45,55,66,77,89,102,116,
 131,147,164,182,201,221,242,264,286,309,333,358,
 384,411,439,468,498,529,561,594,627,661,696,732,
 769,807,846,886,927,969,1012,1056,1100,1145,1191,
 1238,1286]