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A249351 as a simple table

na(n)
11
21
31
41
51
61
70
81
91
101
111
121
131
141
151
161
171
181
191
200
210
220
231
241
251
261
271
281
291
301
312
321
331
341
351
361
371
381
391
401
410
420
430
440
450
461
471
481
491
501
511
521
531
541
551
561
571
581
591
601
611
621
631
641
651
661
671
681
691
700
710
721
731
741
750
760
771
781
791
801
811
821
831
841
851
861
871
881
891
901
910
921
931
941
951
961
971
981
991
1001

[1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,1,1,
 1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,0,0,0,0,0,1,1,1,1,
 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1,1,
 0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,
 1]