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A300428 as a simple table

na(n)
11
21
35
41
53
65
79
81
95
103
1111
125
1311
149
1517
161
179
187
195
2011
213
2213
2311
249
255
2611
2713
289
2911
3017
3133
321
3317
3411
359
367
3719
385
3913
4011
4129
423
4319
4413
4527
4611
4719
4817
499
5019
515
5211
5319
5413
5529
569
5719
5811
5913
6017
6125
6233
6365
641
6533
6623
6717
6813
6911
7029
719
7223
737

[1,1,5,1,3,5,9,1,5,3,11,5,11,9,17,1,9,7,5,11,3,13,
 11,9,5,11,13,9,11,17,33,1,17,11,9,7,19,5,13,11,29,
 3,19,13,27,11,19,17,9,19,5,11,19,13,29,9,19,11,13,
 17,25,33,65,1,33,23,17,13,11,29,9,23,7]