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A090287 as a simple table

na(n)
0101
1313
2727
3131
411411
5151
6777767777
7373
8181
9191
109109
110
127127
13331333
14991499
151151
163163
171171
181181
199199
201201
21112111
220
231231
247247
253253
267777777777267777777777
271111271111
2811128111
291291
301301
313313
321321
330
343343
35333533
361361
373373
381381

[101,313,727,131,11411,151,777767777,373,181,191,
 9109,0,7127,331333,991499,1151,3163,1171,1181,
 9199,1201,112111,0,1231,7247,3253,
 7777777777267777777777,1111271111,11128111,1291,
 1301,3313,1321,0,3343,333533,1361,3373,1381]