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A051415 as a simple table

na(n)
11
23
34
45
56
67
78
89
918
1020
1121
1222
1323
1424
1525
1626
1729
1837
1938
2043
2145
2246
2348
2449
2551
2657
2762
2865
2968
3072
3173
3275
3376
3478
3579
3687
3790
3892
3993
4094
4195
4298
43100
44106
45115
46117
47121
48123
49126
50127
51128
52129
53133
54134
55139
56142
57145
58146
59147
60150
61153
62156
63158
64160

[1,3,4,5,6,7,8,9,18,20,21,22,23,24,25,26,29,37,38,
 43,45,46,48,49,51,57,62,65,68,72,73,75,76,78,79,
 87,90,92,93,94,95,98,100,106,115,117,121,123,126,
 127,128,129,133,134,139,142,145,146,147,150,153,
 156,158,160]