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A277608 as a simple table

na(n)
10
21
32
42
53
63
74
83
94
104
115
124
135
145
155
164
175
185
196
205
216
226
237
245
256
266
276
286
297
306
317
325
336
346
357
366
377
387
397
406
417
427
437
447
457
468
478
486
497
507
517
527
538
547
558
567
578
588
599
607
618
628
638
646
657
667
678
687
698
708
719
727
738
748
758
768
778
788
799
807
818
828
839
848
858
868
879
888

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