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A262218 as a simple table

na(n)
21
33
41
52
63
77
81
911
105
113
123
132
147
1511
163
1716
1811
1917
205
217
223
2323
243
2514
265
2735
287
2914
3011
3131
327
333
3433
3523
3611
3718
3817
3911
405
4120
427
4341
443
4511
4623
4745
483
4955
5029
5167
525
5325
5435
5511
567
5735
5829
5957
6011
6130
6231
6323
6415
652
663
675
6833
6923
7023
7171
7211
7336
7437
7559
7617
777
7811
7915
8011
81107
8241
8381
847
8550
8641
8759
883
8943
9011
9123
9223
9331
9445
9517
967
9748
9855
9911

[1,3,1,2,3,7,1,11,5,3,3,2,7,11,3,16,11,17,5,7,3,
 23,3,14,5,35,7,14,11,31,7,3,33,23,11,18,17,11,5,
 20,7,41,3,11,23,45,3,55,29,67,5,25,35,11,7,35,29,
 57,11,30,31,23,15,2,3,5,33,23,23,71,11,36,37,59,
 17,7,11,15,11,107,41,81,7,50,41,59,3,43,11,23,23,
 31,45,17,7,48,55,11]