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A262871 as a simple table

na(n)
10
21
31
43
53
66
76
86
96
1011
1111
1217
1317
1424
1524
1624
1724
1824
1924
2034
2134
2245
2345
2445
2545
2658
2758
2872
2972
3087
3187
3287
3387
34104
35104
36104
37104
38123
39123
40123
41123
42144
43144
44166
45166
46189
47189
48189
49189
50189
51189
52215
53215
54215
55215
56215
57215
58244
59244
60274

[0,1,1,3,3,6,6,6,6,11,11,17,17,24,24,24,24,24,24,
 34,34,45,45,45,45,58,58,72,72,87,87,87,87,104,104,
 104,104,123,123,123,123,144,144,166,166,189,189,
 189,189,189,189,215,215,215,215,215,215,244,244,
 274]