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A014181 as a simple table

na(n)
111
222
333
444
555
666
777
888
999
10111
11222
12333
13444
14555
15666
16777
17888
18999
191111
202222
213333
224444
235555
246666
257777
268888
279999
2811111
2922222
3033333
3144444
3255555
3366666
3477777
3588888
3699999
37111111
38222222
39333333
40444444
41555555
42666666
43777777
44888888

[11,22,33,44,55,66,77,88,99,111,222,333,444,555,
 666,777,888,999,1111,2222,3333,4444,5555,6666,
 7777,8888,9999,11111,22222,33333,44444,55555,
 66666,77777,88888,99999,111111,222222,333333,
 444444,555555,666666,777777,888888]