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A243925 as a simple table

na(n)
11
21
31
41
51
63
71
81
92
103
111
121
135
142
153
161
171
181
192
203
215
222
233
241
253
261
273
287
297
305
313
325
332
343
351
363
374
385
395
404
417
427
435
443
455
462
473
481
491
505
517
525
5313
547
5513
569
575
584
597
607
617
625
633
645
652
663
671
681
691
703
715
724
736
746
754
769
779
787
798
805
8113
827
8313
849
855

[1,1,1,1,1,3,1,1,2,3,1,1,5,2,3,1,1,1,2,3,5,2,3,1,
 3,1,3,7,7,5,3,5,2,3,1,3,4,5,5,4,7,7,5,3,5,2,3,1,1,
 5,7,5,13,7,13,9,5,4,7,7,7,5,3,5,2,3,1,1,1,3,5,4,6,
 6,4,9,9,7,8,5,13,7,13,9,5]