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A247945 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1011
1113
1215
1317
1419
1521
1622
1725
1827
1929
2031
2123
2233
2337
2439
2541
2624
2744
2847
2949
3051
3153
3245
3355
3459
3561
3626
3746
3866
3969
4071
4173
4275
4367
4477
4581
4628
4748
4868
4988
5091
5193
5295
5397
5489
5510
5620
5740
5860
5980
60111
6114
6216
6318
6412
65112
6642
6762
6882
69113
7034
7136
7238
7330
74114
75116

[1,2,3,4,5,6,7,8,9,11,13,15,17,19,21,22,25,27,29,
 31,23,33,37,39,41,24,44,47,49,51,53,45,55,59,61,
 26,46,66,69,71,73,75,67,77,81,28,48,68,88,91,93,
 95,97,89,10,20,40,60,80,111,14,16,18,12,112,42,62,
 82,113,34,36,38,30,114,116]