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A080897 as a simple table

na(n)
00
11
22
33
44
510
611
712
813
914
10100
11101
12102
13103
14104
15110
16111
17112
18113
19114
20200
21201
22202
23203
24204
251000
261001
271002
281003
291004
301010
311011
321012
331013
341014
351100
361101
371102
381103
391104
401110
411111
421112
431113
441114
451200
461201
471202
481203
491204

[0,1,2,3,4,10,11,12,13,14,100,101,102,103,104,110,
 111,112,113,114,200,201,202,203,204,1000,1001,
 1002,1003,1004,1010,1011,1012,1013,1014,1100,1101,
 1102,1103,1104,1110,1111,1112,1113,1114,1200,1201,
 1202,1203,1204]