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A068398 as a simple table

na(n)
01
11
21
32
43
54
65
76
88
99
1010
1111
1213
1314
1416
1517
1619
1720
1822
1923
2025
2127
2228
2330
2432
2533
2635
2737
2838
2940
3042
3144
3246
3347
3449
3551
3653
3755
3857
3959
4060
4162
4264
4366
4468
4570
4672
4774
4876
4978
5080
5182
5284
5386
5488
5590
5692
5794
5896
5998
60100
61103
62105
63107
64109
65111
66113
67115
68117
69120

[1,1,1,2,3,4,5,6,8,9,10,11,13,14,16,17,19,20,22,
 23,25,27,28,30,32,33,35,37,38,40,42,44,46,47,49,
 51,53,55,57,59,60,62,64,66,68,70,72,74,76,78,80,
 82,84,86,88,90,92,94,96,98,100,103,105,107,109,
 111,113,115,117,120]