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A259847 as a simple table

na(n)
10
21
32
42
53
63
74
83
94
104
115
124
135
145
153
164
175
185
196
205
214
226
237
245
256
266
276
286
297
304
315
325
335
346
355
366
377
387
395
406
417
425
436
447
455
468
479
486
496
507
515
527
538
547
556
567
576
588
599
605
616
626
634
646
655
666
677
687
697
706
717
727
738
748
756
768
775
786
797
807
818
828
839
846
855
867
877

[0,1,2,2,3,3,4,3,4,4,5,4,5,5,3,4,5,5,6,5,4,6,7,5,
 6,6,6,6,7,4,5,5,5,6,5,6,7,7,5,6,7,5,6,7,5,8,9,6,6,
 7,5,7,8,7,6,7,6,8,9,5,6,6,4,6,5,6,7,7,7,6,7,7,8,8,
 6,8,5,6,7,7,8,8,9,6,5,7,7]