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A375461 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1112
1214
1316
1418
1520
1622
1724
1826
1928
2030
2132
2234
2336
2438
2540
2642
2744
2846
2948
3050
3152
3254
3356
3458
3560
3662
3764
3866
39102
40105
41108
42111
43114
44117
45120
46123
47126
48129
49132
50135
51138
52141
53144
54147
55150
56153
57156
58159
59162
60165
61168

[1,2,3,4,5,6,7,8,9,10,12,14,16,18,20,22,24,26,28,
 30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,
 62,64,66,102,105,108,111,114,117,120,123,126,129,
 132,135,138,141,144,147,150,153,156,159,162,165,
 168]