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A337533 as a simple table

na(n)
11
22
33
45
56
67
78
810
911
1012
1113
1214
1315
1417
1518
1619
1720
1821
1922
2023
2124
2226
2327
2428
2529
2630
2731
2833
2934
3035
3137
3238
3339
3440
3541
3642
3743
3844
3945
4046
4147
4250
4351
4452
4553
4654
4755
4856
4957
5058
5159
5260
5361
5462
5563
5665
5766
5867
5968

[1,2,3,5,6,7,8,10,11,12,13,14,15,17,18,19,20,21,
 22,23,24,26,27,28,29,30,31,33,34,35,37,38,39,40,
 41,42,43,44,45,46,47,50,51,52,53,54,55,56,57,58,
 59,60,61,62,63,65,66,67,68]