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A280814 as a simple table

na(n)
11
21
32
42
53
63
74
85
95
106
117
127
138
148
159
169
1710
1811
1911
2012
2113
2213
2314
2414
2515
2615
2716
2817
2917
3018
3119
3219
3320
3420
3521
3621
3722
3823
3923
4024
4125
4225
4326
4426
4527
4627
4728
4829
4930
5030
5131
5231
5332
5432
5533
5633
5734
5835
5936
6036
6137
6237
6338
6438
6539
6640
6740
6841
6942

[1,1,2,2,3,3,4,5,5,6,7,7,8,8,9,9,10,11,11,12,13,
 13,14,14,15,15,16,17,17,18,19,19,20,20,21,21,22,
 23,23,24,25,25,26,26,27,27,28,29,30,30,31,31,32,
 32,33,33,34,35,36,36,37,37,38,38,39,40,40,41,42]