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A285618 as a simple table

na(n)
12
23
34
412
513
614
716
817
918
1020
1121
1222
1324
1425
1526
1628
1729
1830
1932
2033
2134
2236
2337
2438
2546
2647
2748
2856
2957
3058
3166
3267
3368
3476
3577
3678
3786
3887
3988
4096
4197
4298
43106
44107
45108
46110
47111
48112
49114
50115
51116
52118
53119
54120
55122
56123
57124
58126
59127
60128
61130

[2,3,4,12,13,14,16,17,18,20,21,22,24,25,26,28,29,
 30,32,33,34,36,37,38,46,47,48,56,57,58,66,67,68,
 76,77,78,86,87,88,96,97,98,106,107,108,110,111,
 112,114,115,116,118,119,120,122,123,124,126,127,
 128,130]