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A048263 as a simple table

na(n)
11
22
33
44
56
67
78
89
910
1011
1112
1214
1315
1416
1519
1620
1721
1823
1924
2025
2126
2227
2328
2431
2532
2633
2736
2838
2939
3040
3143
3244
3345
3448
3549
3652
3756
3857
3960
4062
4165
4268
4369
4477
4580
4681
4785
4893
49121

[1,2,3,4,6,7,8,9,10,11,12,14,15,16,19,20,21,23,24,
 25,26,27,28,31,32,33,36,38,39,40,43,44,45,48,49,
 52,56,57,60,62,65,68,69,77,80,81,85,93,121]