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A005145 as a simple table

na(n)
12
23
33
45
55
65
77
87
97
107
1111
1211
1311
1411
1511
1613
1713
1813
1913
2013
2113
2217
2317
2417
2517
2617
2717
2817
2919
3019
3119
3219
3319
3419
3519
3619
3723
3823
3923
4023
4123
4223
4323
4423
4523
4629
4729
4829
4929
5029
5129
5229
5329
5429
5529
5631
5731
5831
5931
6031
6131
6231
6331
6431
6531
6631

[2,3,3,5,5,5,7,7,7,7,11,11,11,11,11,13,13,13,13,
 13,13,17,17,17,17,17,17,17,19,19,19,19,19,19,19,
 19,23,23,23,23,23,23,23,23,23,29,29,29,29,29,29,
 29,29,29,29,31,31,31,31,31,31,31,31,31,31,31]