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A087069 as a simple table

na(n)
00
11
22
33
45
56
67
78
810
911
1012
1113
1215
1316
1417
1518
1621
1722
1823
1924
2026
2127
2228
2329
2431
2532
2633
2734
2836
2937
3038
3139
3242
3343
3444
3545
3647
3748
3849
3950
4052
4153
4254
4355
4457
4558
4659
4760
4863
4964
5065
5166
5268
5369
5470
5571
5673
5774
5875
5976
6078
6179
6280
6381
6485
6586
6687
6788
6890
6991
7092
7193

[0,1,2,3,5,6,7,8,10,11,12,13,15,16,17,18,21,22,23,
 24,26,27,28,29,31,32,33,34,36,37,38,39,42,43,44,
 45,47,48,49,50,52,53,54,55,57,58,59,60,63,64,65,
 66,68,69,70,71,73,74,75,76,78,79,80,81,85,86,87,
 88,90,91,92,93]