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A116648 as a simple table

na(n)
12
22
34
44
55
65
75
85
97
107
117
127
137
147
159
169
1711
1811
1911
2011
2111
2211
2318
2418
2519
2619
2719
2819
2920
3020
3120
3220
3321
3421
3521
3621
3721
3821
3921
4021
4127
4227
4327
4427
4527
4627
4727
4827
4929
5029
5129
5229
5330
5430
5530
5630
5730
5830
5930
6030
6130
6230
6339
6439
6539
6639
6742
6842
6942
7042
7144
7244
7344
7444

[2,2,4,4,5,5,5,5,7,7,7,7,7,7,9,9,11,11,11,11,11,
 11,18,18,19,19,19,19,20,20,20,20,21,21,21,21,21,
 21,21,21,27,27,27,27,27,27,27,27,29,29,29,29,30,
 30,30,30,30,30,30,30,30,30,39,39,39,39,42,42,42,
 42,44,44,44,44]