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A125121 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1112
1214
1315
1416
1517
1618
1720
1821
1924
2028
2130
2231
2332
2433
2534
2635
2736
2840
2942
3045
3148
3249
3351
3456
3560
3662
3763
3864
3965
4066
4168
4269
4370
4472
4573
4675
4780
4884
4985
5089
5190
5293
5396
5498
55102
56105
57112
58120
59124
60126
61127
62128
63129
64130
65132
66133
67135
68136

[1,2,3,4,5,6,7,8,9,10,12,14,15,16,17,18,20,21,24,
 28,30,31,32,33,34,35,36,40,42,45,48,49,51,56,60,
 62,63,64,65,66,68,69,70,72,73,75,80,84,85,89,90,
 93,96,98,102,105,112,120,124,126,127,128,129,130,
 132,133,135,136]