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A199968 as a simple table

na(n)
10
20
32
43
52
64
72
83
92
103
112
125
132
143
152
163
172
184
192
203
212
223
232
245
252
263
272
283
292
304
312
323
332
343
352
365
372
383
392
403
412
424
432
443
452
463
472
485
492
503
512
523
532
544
552
563
572
583
592
607
612
623
632
643
652
664
672
683
692
703
712
725
732
743
752
763
772
784
792
803
812
823
832

[0,0,2,3,2,4,2,3,2,3,2,5,2,3,2,3,2,4,2,3,2,3,2,5,
 2,3,2,3,2,4,2,3,2,3,2,5,2,3,2,3,2,4,2,3,2,3,2,5,2,
 3,2,3,2,4,2,3,2,3,2,7,2,3,2,3,2,4,2,3,2,3,2,5,2,3,
 2,3,2,4,2,3,2,3,2]