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A065904 as a simple table

na(n)
12
23
34
46
57
69
710
811
912
1013
1114
1219
1320
1421
1522
1623
1724
1826
1929
2031
2132
2237
2338
2439
2540
2641
2742
2843
2944
3049
3150
3252
3353
3454
3559
3660
3761
3862
3964
4065
4170
4272
4373
4474
4575
4677
4779
4880
4982
5083
5185
5287
5389
5493
5594
5695
5796
5897
5999
60100
61101
62103
63108
64109
65111
66116
67119
68121

[2,3,4,6,7,9,10,11,12,13,14,19,20,21,22,23,24,26,
 29,31,32,37,38,39,40,41,42,43,44,49,50,52,53,54,
 59,60,61,62,64,65,70,72,73,74,75,77,79,80,82,83,
 85,87,89,93,94,95,96,97,99,100,101,103,108,109,
 111,116,119,121]