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A090739 as a simple table

na(n)
13
24
33
45
53
64
73
86
93
104
113
125
133
144
153
167
173
184
193
205
213
224
233
246
253
264
273
285
293
304
313
328
333
344
353
365
373
384
393
406
413
424
433
445
453
464
473
487
493
504
513
525
533
544
553
566
573
584
593
605
613
624
633
649
653
664
673
685
693
704
713
726
733
744
753
765
773
784
793
807
813
824
833
845
853
864
873

[3,4,3,5,3,4,3,6,3,4,3,5,3,4,3,7,3,4,3,5,3,4,3,6,
 3,4,3,5,3,4,3,8,3,4,3,5,3,4,3,6,3,4,3,5,3,4,3,7,3,
 4,3,5,3,4,3,6,3,4,3,5,3,4,3,9,3,4,3,5,3,4,3,6,3,4,
 3,5,3,4,3,7,3,4,3,5,3,4,3]