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A130490 as a simple table

na(n)
00
11
23
36
410
515
621
728
836
945
1055
1166
1266
1367
1469
1572
1676
1781
1887
1994
20102
21111
22121
23132
24132
25133
26135
27138
28142
29147
30153
31160
32168
33177
34187
35198
36198
37199
38201
39204
40208
41213
42219
43226
44234
45243
46253
47264
48264
49265
50267
51270
52274
53279
54285
55292
56300

[0,1,3,6,10,15,21,28,36,45,55,66,66,67,69,72,76,
 81,87,94,102,111,121,132,132,133,135,138,142,147,
 153,160,168,177,187,198,198,199,201,204,208,213,
 219,226,234,243,253,264,264,265,267,270,274,279,
 285,292,300]