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A308993 as a simple table

na(n)
11
21
31
42
51
61
71
82
93
101
111
122
131
141
151
164
171
183
191
202
211
221
231
242
255
261
273
282
291
301
311
322
331
341
351
366
371
381
391
402
411
421
431
442
453
461
471
484
497
505
511
522
531
543
551
562
571
581
591
602
611
621
633
642
651
661
671
682
691
701
711
726
731
741
755
762
771
781
791
804
819
821
831
842
851
861
871

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