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A176028 as a simple table

na(n)
13
21
31
41
51
61
71
81
91
101
115
125
135
145
155
163
173
183
193
203
213
223
233
243
253
263
273
283
293
303
313
323
333
343
353
363
373
383
393
403
413
423
433
443
453
463
473
483
493
503
513
523
533
543
553
563
573
583
599
609
619
629
639
649
659
669
679
689
699
709
719
729
739
749
759
769
779
789
799
809
819
829
839
849
859
869
879
889
899
909
919
929
939
949
959
969
979
989
999
1009
1019
1029
1039
1049
1059

[3,1,1,1,1,1,1,1,1,1,5,5,5,5,5,3,3,3,3,3,3,3,3,3,
 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
 3,3,3,3,3,3,3,3,3,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
 9,9,9,9,9,9]