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A069909 as a simple table

na(n)
01
14
26
37
49
510
612
715
817
920
1022
1123
1225
1326
1428
1531
1633
1736
1838
1939
2041
2142
2244
2347
2449
2552
2654
2755
2857
2958
3060
3163
3265
3368
3470
3571
3673
3774
3876
3979
4081
4184
4286
4387
4489
4590
4692
4795
4897
49100
50102
51103
52105
53106
54108
55111
56113
57116
58118
59119
60121

[1,4,6,7,9,10,12,15,17,20,22,23,25,26,28,31,33,36,
 38,39,41,42,44,47,49,52,54,55,57,58,60,63,65,68,
 70,71,73,74,76,79,81,84,86,87,89,90,92,95,97,100,
 102,103,105,106,108,111,113,116,118,119,121]