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A354808 as a simple table

na(n)
12
23
34
45
56
67
78
89
910
1011
1112
1213
1314
1415
1516
1617
1718
1819
1920
2021
2122
2223
2325
2426
2527
2628
2729
2831
2933
3034
3135
3237
3338
3439
3541
3643
3744
3845
3946
4047
4149
4250
4351
4452
4553
4655
4757
4858
4959
5061
5162
5263
5365
5466
5567
5668
5769
5870
5971
6073
6174
6275
6376
6477
6578
6679
6781
6882
6983
7085
7186
7287
7389
7491
7592
7693
7794
7895
7997
8098
8199
82101

[2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,
 21,22,23,25,26,27,28,29,31,33,34,35,37,38,39,41,
 43,44,45,46,47,49,50,51,52,53,55,57,58,59,61,62,
 63,65,66,67,68,69,70,71,73,74,75,76,77,78,79,81,
 82,83,85,86,87,89,91,92,93,94,95,97,98,99,101]