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A026371 as a simple table

na(n)
11
22
33
45
56
68
79
811
912
1013
1114
1216
1317
1419
1520
1621
1722
1824
1925
2027
2128
2229
2330
2432
2533
2635
2736
2838
2939
3041
3142
3243
3344
3446
3547
3649
3750
3851
3952
4054
4155
4257
4358
4460
4561
4663
4764
4865
4966
5068
5169
5271
5372
5473
5574
5676
5777
5879
5980
6082
6183
6285
6386

[1,2,3,5,6,8,9,11,12,13,14,16,17,19,20,21,22,24,
 25,27,28,29,30,32,33,35,36,38,39,41,42,43,44,46,
 47,49,50,51,52,54,55,57,58,60,61,63,64,65,66,68,
 69,71,72,73,74,76,77,79,80,82,83,85,86]