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A247069 as a simple table

na(n)
12
22
32
42
53
63
72
82
93
104
113
123
133
142
152
163
174
184
192
203
214
223
233
244
253
265
275
285
295
304
314
324
336
344
355
365
375
386
395
404
416
426
435
444
455
466
477
486
495
505
514
525
535
546
553
565
576
585
596
605
616
623
636
647
655
665
674
685
695
705
716
724
737
744
754
766
776
784
795
807
813
823
833
844
853
865
872
883
895
905
916
927
936
944
957
965
976
985
997
1003
1018

[2,2,2,2,3,3,2,2,3,4,3,3,3,2,2,3,4,4,2,3,4,3,3,4,
 3,5,5,5,5,4,4,4,6,4,5,5,5,6,5,4,6,6,5,4,5,6,7,6,5,
 5,4,5,5,6,3,5,6,5,6,5,6,3,6,7,5,5,4,5,5,5,6,4,7,4,
 4,6,6,4,5,7,3,3,3,4,3,5,2,3,5,5,6,7,6,4,7,5,6,5,7,
 3,8]