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A228813 as a simple table

na(n)
11
21
31
41
51
61
71
81
91
101
110
121
131
141
151
161
171
180
190
201
211
221
231
241
251
260
270
281
291
301
311
321
330
341
351
360
370
380
391
401
411
421
431
441
451
461
470
480
490
500
511
521
531
541
550
560
571
581
590
600
611
621
631
641
651
661
670
680
691
701
711
720
730
740
750
760
771
781
791
801
811
821
830
841
851
860
870
880
890
900

[1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1,0,0,1,1,1,1,1,
 1,0,0,1,1,1,1,1,0,1,1,0,0,0,1,1,1,1,1,1,1,1,0,0,0,
 0,1,1,1,1,0,0,1,1,0,0,1,1,1,1,1,1,0,0,1,1,1,0,0,0,
 0,0,1,1,1,1,1,1,0,1,1,0,0,0,0,0]