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A298866 as a simple table

na(n)
11
22
33
44
56
68
79
810
912
1014
1115
1216
1317
1418
1520
1622
1723
1824
1925
2027
2128
2230
2331
2432
2534
2635
2736
2837
2938
3039
3142
3243
3344
3445
3547
3648
3749
3850
3952
4054
4155
4256
4358
4459
4560
4661
4762
4864
4965
5066
5167
5269
5370
5472
5573
5674
5776
5877
5978
6079
6180
6283
6384
6485
6586
6688

[1,2,3,4,6,8,9,10,12,14,15,16,17,18,20,22,23,24,
 25,27,28,30,31,32,34,35,36,37,38,39,42,43,44,45,
 47,48,49,50,52,54,55,56,58,59,60,61,62,64,65,66,
 67,69,70,72,73,74,76,77,78,79,80,83,84,85,86,88]