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A097377 as a simple table

na(n)
12
23
34
45
56
67
78
85
910
1011
1112
1213
1314
1415
1516
165
1718
1819
1920
2021
2122
2223
2324
2413
2526
2627
2710
2829
2930
3031
3132
325
3334
3435
3536
3637
3738
3839
3940
4021
4142
4243
4344
4445
4546
4647
4748
4813
4950
5051
5152
5253
5354
5419
5556
5629
5758
5859
5960
6061
6162
6263
6364
645
6566
6667
6768
6869
6970
7071
7172
7237
7374
7475

[2,3,4,5,6,7,8,5,10,11,12,13,14,15,16,5,18,19,20,
 21,22,23,24,13,26,27,10,29,30,31,32,5,34,35,36,37,
 38,39,40,21,42,43,44,45,46,47,48,13,50,51,52,53,
 54,19,56,29,58,59,60,61,62,63,64,5,66,67,68,69,70,
 71,72,37,74,75]