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A252490 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1111
1212
1321
1422
1523
1632
1733
1834
1943
2044
2145
2254
2355
2456
2565
2666
2767
2876
2977
3078
3187
3288
3389
3490
3598
3699
37100
38101
39102
40109
41110
42111
43112
44120
45121
46122
47123
48132
49190
50201
51210
52211
53212
54213
55221
56222
57223
58231
59232
60233
61234
62243
63312
64321
65322
66323
67324
68332
69333
70334
71342
72343
73344
74345
75354
76423
77432

[1,2,3,4,5,6,7,8,9,10,11,12,21,22,23,32,33,34,43,
 44,45,54,55,56,65,66,67,76,77,78,87,88,89,90,98,
 99,100,101,102,109,110,111,112,120,121,122,123,
 132,190,201,210,211,212,213,221,222,223,231,232,
 233,234,243,312,321,322,323,324,332,333,334,342,
 343,344,345,354,423,432]