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A265549 as a simple table

na(n)
00
11
22
33
44
511
611
722
833
944
1022
1122
1222
1333
1444
1533
1633
1733
1833
1944
2044
2144
2244
2344
2444
25101
26101
27202
28303
29404
30111
31111
32212
33313
34414
35121
36121
37222
38323
39424
40131
41131
42232
43333
44434
45141
46141
47242
48343
49444
50202
51202
52202
53303
54404
55212
56212
57212
58313
59414
60222
61222
62222
63323
64424
65232
66232
67232
68333
69434

[0,1,2,3,4,11,11,22,33,44,22,22,22,33,44,33,33,33,
 33,44,44,44,44,44,44,101,101,202,303,404,111,111,
 212,313,414,121,121,222,323,424,131,131,232,333,
 434,141,141,242,343,444,202,202,202,303,404,212,
 212,212,313,414,222,222,222,323,424,232,232,232,
 333,434]