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A087019 as a simple table

na(n)
00
11
22
33
44
55
66
77
88
99
10100
11111
12112
13113
14114
15115
16116
17117
18118
19119
20200
21211
22222
23223
24224
25225
26226
27227
28228
29229
30300
31311
32322
33333
34334
35335
36336
37337
38338
39339
40400
41411
42422
43433
44444
45445
46446
47447
48448
49449
50500
51511
52522
53533
54544
55555
56556
57557
58558

[0,1,2,3,4,5,6,7,8,9,100,111,112,113,114,115,116,
 117,118,119,200,211,222,223,224,225,226,227,228,
 229,300,311,322,333,334,335,336,337,338,339,400,
 411,422,433,444,445,446,447,448,449,500,511,522,
 533,544,555,556,557,558]