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A159062 as a simple table

na(n)
12
23
34
45
56
67
78
89
910
1011
1112
1213
1314
1415
1516
1616
1717
1818
1919
2020
2121
2222
2322
2423
2524
2625
2726
2827
2927
3028
3129
3230
3331
3432
3532
3633
3734
3835
3936
4037
4137
4238
4339
4440
4541
4641
4742
4843
4944
5045
5145
5246
5347
5448
5549
5649
5750
5851
5952
6053
6153
6254
6355
6456
6557
6657
6758
6859
6960
7061
7161
7262

[2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,16,17,18,19,
 20,21,22,22,23,24,25,26,27,27,28,29,30,31,32,32,
 33,34,35,36,37,37,38,39,40,41,41,42,43,44,45,45,
 46,47,48,49,49,50,51,52,53,53,54,55,56,57,57,58,
 59,60,61,61,62]