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A363270 as a simple table

na(n)
11
21
31
41
51
63
713
81
97
105
1113
123
135
147
155
161
1713
189
1911
205
211
2211
235
243
2519
2613
2731
287
2911
3015
31121
321
3325
3417
355
369
377
3819
3967
405
4131
4221
4349
4411
4517
4623
47121
483
4937
5025
5129
5213
535
5427
5547
567
5743
5829
5967
6015
6123
6231
6391
641
6549
6633
6719
6817
6913
7035
71121
729
7355

[1,1,1,1,1,3,13,1,7,5,13,3,5,7,5,1,13,9,11,5,1,11,
 5,3,19,13,31,7,11,15,121,1,25,17,5,9,7,19,67,5,31,
 21,49,11,17,23,121,3,37,25,29,13,5,27,47,7,43,29,
 67,15,23,31,91,1,49,33,19,17,13,35,121,9,55]