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A242189 as a simple table

na(n)
33
45
55
67
77
811
911
1013
1113
1213
1313
1417
1517
1619
1719
1819
1919
2023
2123
2231
2331
2431
2531
2631
2731
2837
2937
3037
3137
3241
3341
3441
3541
3641
3741
3847
3947
4047
4147
4247
4347
4447
4547
4661
4761
4861
4961
5061
5161
5261
5361
5461
5567
5667
5767
5873
5973
6073
6173
6273
6373
6473
6573
6673
6773
6883

[3,5,5,7,7,11,11,13,13,13,13,17,17,19,19,19,19,23,
 23,31,31,31,31,31,31,37,37,37,37,41,41,41,41,41,
 41,47,47,47,47,47,47,47,47,61,61,61,61,61,61,61,
 61,61,67,67,67,73,73,73,73,73,73,73,73,73,73,83]