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A141792 as a simple table

na(n)
12
23
35
47
511
611
711
811
911
1013
1117
1219
1319
1419
1523
1623
1723
1823
1923
2029
2129
2229
2331
2431
2531
2637
2737
2837
2937
3037
3141
3243
3347
3447
3547
3647
3747
3847
3947
4047
4147
4247
4347
4453
4553
4653
4753
4853
4953
5053
5153
5253
5359
5459
5559
5661
5761
5861
5961
6061
6161
6261
6361
6461
6567
6667
6767
6867
6967
7071
7171
7271
7371

[2,3,5,7,11,11,11,11,11,13,17,19,19,19,23,23,23,
 23,23,29,29,29,31,31,31,37,37,37,37,37,41,43,47,
 47,47,47,47,47,47,47,47,47,47,53,53,53,53,53,53,
 53,53,53,59,59,59,61,61,61,61,61,61,61,61,61,67,
 67,67,67,67,71,71,71,71]