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A075471 as a simple table

na(n)
12
23
34
45
56
68
710
811
913
1015
1117
1220
1322
1424
1526
1629
1731
1834
1936
2039
2141
2243
2346
2448
2551
2654
2757
2859
2962
3064
3167
3270
3373
3476
3579
3681
3784
3887
3990
4093
4196
4299
43102
44105
45108
46111
47114
48117
49120
50124
51127
52130
53133
54136
55139
56142
57145
58148
59151
60155
61157
62161
63164

[2,3,4,5,6,8,10,11,13,15,17,20,22,24,26,29,31,34,
 36,39,41,43,46,48,51,54,57,59,62,64,67,70,73,76,
 79,81,84,87,90,93,96,99,102,105,108,111,114,117,
 120,124,127,130,133,136,139,142,145,148,151,155,
 157,161,164]