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A351119 as a simple table

na(n)
12
23
34
45
56
67
78
89
912
1013
1114
1215
1316
1417
1518
1620
1721
1824
1926
2027
2128
2229
2330
2431
2532
2633
2736
2837
2938
3041
3142
3243
3344
3445
3547
3648
3749
3850
3954
4056
4157
4258
4359
4460
4562
4665
4768
4870
4971
5072
5173
5276
5377
5479
5580
5681
5782
5884
5985
6086
6190
6291
6392
6493
6598
66100
67105
68106
69107
70108

[2,3,4,5,6,7,8,9,12,13,14,15,16,17,18,20,21,24,26,
 27,28,29,30,31,32,33,36,37,38,41,42,43,44,45,47,
 48,49,50,54,56,57,58,59,60,62,65,68,70,71,72,73,
 76,77,79,80,81,82,84,85,86,90,91,92,93,98,100,105,
 106,107,108]