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A257457 as a simple table

na(n)
12
23
34
46
58
610
711
812
914
1015
1118
1219
1320
1422
1523
1627
1730
1835
1938
2042
2147
2248
2349
2452
2553
2654
2760
2861
2963
3064
3169
3270
3373
3474
3583
3685
3787
3889
3992
4094
4197
42102
43112
44114
45116
46117
47120
48125
49127
50128
51134
52136
53139
54146
55149
56151
57153
58155
59156
60158
61159

[2,3,4,6,8,10,11,12,14,15,18,19,20,22,23,27,30,35,
 38,42,47,48,49,52,53,54,60,61,63,64,69,70,73,74,
 83,85,87,89,92,94,97,102,112,114,116,117,120,125,
 127,128,134,136,139,146,149,151,153,155,156,158,
 159]