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A026503 as a simple table

na(n)
11
22
34
45
56
67
78
89
910
1011
1112
1213
1315
1416
1518
1619
1721
1822
1924
2025
2127
2228
2330
2431
2533
2636
2737
2840
2942
3043
3145
3246
3348
3451
3557
3658
3760
3861
3963
4067
4170
4272
4375
4478
4581
4682
4785
4888
4991
5093
5196
52102
53105
54112
55117
56120
57121
58123
59130
60133

[1,2,4,5,6,7,8,9,10,11,12,13,15,16,18,19,21,22,24,
 25,27,28,30,31,33,36,37,40,42,43,45,46,48,51,57,
 58,60,61,63,67,70,72,75,78,81,82,85,88,91,93,96,
 102,105,112,117,120,121,123,130,133]