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A254621 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1011
1112
1213
1314
1415
1516
1617
1718
1819
1921
2022
2131
2241
2351
2461
2571
2681
2791
28111
29112
30113
31114
32115
33116
34117
35118
36119
37121
38122
39123
40131
41132
42141
43151
44161
45171
46181
47191
48211
49212
50213
51221
52231
53311
54312
55321
56411

[1,2,3,4,5,6,7,8,9,11,12,13,14,15,16,17,18,19,21,
 22,31,41,51,61,71,81,91,111,112,113,114,115,116,
 117,118,119,121,122,123,131,132,141,151,161,171,
 181,191,211,212,213,221,231,311,312,321,411]