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A239517 as a simple table

na(n)
10
20
31
42
54
65
78
810
913
1016
1120
1224
1329
1433
1539
1646
1753
1859
1967
2077
2187
2297
23107
24120
25134
26147
27163
28180
29196
30216
31236
32259
33281
34305
35332
36363
37393
38423
39456
40496
41534
42577
43619
44667
45718
46770
47823
48887
49949
501016
511087
521165
531240
541325
551414
561512

[0,0,1,2,4,5,8,10,13,16,20,24,29,33,39,46,53,59,
 67,77,87,97,107,120,134,147,163,180,196,216,236,
 259,281,305,332,363,393,423,456,496,534,577,619,
 667,718,770,823,887,949,1016,1087,1165,1240,1325,
 1414,1512]