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A080804 as a simple table

na(n)
11
23
34
46
57
68
79
811
912
1013
1114
1215
1316
1417
1518
1620
1721
1822
1923
2024
2125
2226
2327
2428
2529
2630
2731
2832
2933
3034
3135
3237
3338
3439
3540
3641
3742
3843
3944
4045
4146
4247
4348
4449
4550
4651
4752
4853
4954
5055
5156
5257
5358
5459
5560
5661
5762
5863
5964
6065
6166
6267
6368
6470
6571
6672
6773
6874
6975
7076
7177
7278

[1,3,4,6,7,8,9,11,12,13,14,15,16,17,18,20,21,22,
 23,24,25,26,27,28,29,30,31,32,33,34,35,37,38,39,
 40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,
 56,57,58,59,60,61,62,63,64,65,66,67,68,70,71,72,
 73,74,75,76,77,78]