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A333559 as a simple table

na(n)
12
23
34
45
57
68
79
810
911
1013
1114
1215
1317
1416
1518
1619
1721
1822
1923
2025
2126
2227
2328
2429
2530
2631
2732
2833
2934
3036
3137
3238
3339
3440
3541
3642
3743
3844
3945
4046
4147
4248
4349
4450
4551
4652
4753
4854
4955
5057
5158
5259
5361
5462
5563
5664
5765
5866
5967
6068
6169
6270
6371
6473
6574
6675
6776

[2,3,4,5,7,8,9,10,11,13,14,15,17,16,18,19,21,22,
 23,25,26,27,28,29,30,31,32,33,34,36,37,38,39,40,
 41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,57,
 58,59,61,62,63,64,65,66,67,68,69,70,71,73,74,75,
 76]