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A309066 as a simple table

na(n)
12
23
34
45
56
67
78
89
910
1011
1112
1213
1314
1415
1516
1617
1718
1819
1921
2022
2123
2224
2326
2427
2529
2630
2731
2832
2933
3035
3136
3237
3338
3439
3540
3643
3744
3845
3946
4048
4149
4251
4353
4457
4559
4661
4763
4865
4966
5068
5169
5270
5371
5473
5575
5677
5778
5879
5981
6085
6186
6287
6388
6489
6590
6691
6792
6893
6994
7095

[2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,21,
 22,23,24,26,27,29,30,31,32,33,35,36,37,38,39,40,
 43,44,45,46,48,49,51,53,57,59,61,63,65,66,68,69,
 70,71,73,75,77,78,79,81,85,86,87,88,89,90,91,92,
 93,94,95]