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A097506 as a simple table

na(n)
00
11
22
34
45
57
68
79
811
912
1014
1115
1216
1318
1419
1521
1622
1724
1825
1926
2028
2129
2231
2332
2433
2535

[0,1,2,4,5,7,8,9,11,12,14,15,16,18,19,21,22,24,25,
 26,28,29,31,32,33,35]