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A240237 as a simple table

na(n)
00
11
22
33
44
55
66
77
88
99
10101
11110
12121
13132
14143
15154
16165
17176
18187
19198
20202
21211
22220
23231
24242
25253
26264
27275
28286
29297
30303
31312
32321
33330
34341
35352
36363
37374
38385
39396
40404
41413
42422
43431
44440
45451
46462
47473
48484
49495
50505
51514
52523
53532
54541
55550
56561
57572
58583
59594
60606
61615

[0,1,2,3,4,5,6,7,8,9,101,110,121,132,143,154,165,
 176,187,198,202,211,220,231,242,253,264,275,286,
 297,303,312,321,330,341,352,363,374,385,396,404,
 413,422,431,440,451,462,473,484,495,505,514,523,
 532,541,550,561,572,583,594,606,615]