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A118596 as a simple table

na(n)
10
21
32
43
54
611
722
833
944
10101
11111
12121
13131
14141
15202
16212
17222
18232
19242
20303
21313
22323
23333
24343
25404
26414
27424
28434
29444
301001
311111
321221
331331
341441
352002
362112
372222
382332
392442
403003
413113
423223
433333
443443
454004
464114
474224
484334
494444
5010001

[0,1,2,3,4,11,22,33,44,101,111,121,131,141,202,
 212,222,232,242,303,313,323,333,343,404,414,424,
 434,444,1001,1111,1221,1331,1441,2002,2112,2222,
 2332,2442,3003,3113,3223,3333,3443,4004,4114,4224,
 4334,4444,10001]