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A153134 as a simple table

na(n)
12
23
34
45
56
68
79
810
911
1013
1115
1216
1318
1419
1520
1623
1724
1826
1929
2030
2131
2233
2334
2439
2540
2641
2743
2844
2945
3046
3148
3250
3353
3454
3559
3660
3761
3865
3966
4068
4171
4273
4375
4476
4578
4679
4781
4883
4985
5086
5188
5294
5395
5496
5599
56100
57101
58104
59108
60109
61110
62111
63114
64115
65118
66121
67125
68128

[2,3,4,5,6,8,9,10,11,13,15,16,18,19,20,23,24,26,
 29,30,31,33,34,39,40,41,43,44,45,46,48,50,53,54,
 59,60,61,65,66,68,71,73,75,76,78,79,81,83,85,86,
 88,94,95,96,99,100,101,104,108,109,110,111,114,
 115,118,121,125,128]