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A204549 as a simple table

na(n)
10
21
31
41
51
61
70
80
90
100
110
120
130
140
150
161
171
181
191
201
211
221
231
241
251
261
271
281
290
300
310
320
330
340
350
360
370
380
390
400
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
670
680
690
700
710
720
730
740
750
760
770
780
790
800
810
820
830
840
850
860
870
880
890
900
910
921
931
941
951
961
971
981
991

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