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A242124 as a simple table

na(n)
12
23
35
47
511
613
717
819
923
103
115
1211
1315
1417
1521
161
177
189
1915
2019
2121
221
235
2411
2519
2623
2725
283
295
309
3123
321
337
349
3519
3621
371
387
3911
4017
4123
4225
439
4411
4515
4617
473
4815
4919
5021
5125
525
537
5417
5523
563
579
5811
5917
6021
6123
627
6321
6425
651
665
6719
6825
699
7011
7115
7221

[2,3,5,7,11,13,17,19,23,3,5,11,15,17,21,1,7,9,15,
 19,21,1,5,11,19,23,25,3,5,9,23,1,7,9,19,21,1,7,11,
 17,23,25,9,11,15,17,3,15,19,21,25,5,7,17,23,3,9,
 11,17,21,23,7,21,25,1,5,19,25,9,11,15,21]