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A079050 as a simple table

na(n)
12
23
34
45
56
67
78
89
910
103
113
125
136
147
158
169
1710
1811
1912
204
215
224
237
248
259
2610
2711
2812
2913
305
316
327
335
349
3510
3611
3712
3813
3914
406
417
428
439
446
4511
4612
4713
4814
4915
507
518
529
5310
5411
557
5613
5714
5815
5916
608
619
6210
6311
6412
6513
668
6715
6816
6917
709
7110
7211
7312
7413
7514
7615
779
7817
7918
8010
8111
8212
8313

[2,3,4,5,6,7,8,9,10,3,3,5,6,7,8,9,10,11,12,4,5,4,
 7,8,9,10,11,12,13,5,6,7,5,9,10,11,12,13,14,6,7,8,
 9,6,11,12,13,14,15,7,8,9,10,11,7,13,14,15,16,8,9,
 10,11,12,13,8,15,16,17,9,10,11,12,13,14,15,9,17,
 18,10,11,12,13]