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A164743 as a simple table

na(n)
13
23
36
49
56
66
73
89
93
103
116
129
136
146
153
169
173
183
196
209
216
226
233
249
253
263
276
289
296
306
313
329
333
343
356
369
376
386
393
409
413
423
436
449
456
466
473
489
493
503
516
529
536
546
553
569
573
583
596
609
616
626
633
649
653
663
676
689
696
706
713
729
733
743
756
769
776
786
793
809
813
823
836
849
856
866
873
889

[3,3,6,9,6,6,3,9,3,3,6,9,6,6,3,9,3,3,6,9,6,6,3,9,
 3,3,6,9,6,6,3,9,3,3,6,9,6,6,3,9,3,3,6,9,6,6,3,9,3,
 3,6,9,6,6,3,9,3,3,6,9,6,6,3,9,3,3,6,9,6,6,3,9,3,3,
 6,9,6,6,3,9,3,3,6,9,6,6,3,9]