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A175253 as a simple table

na(n)
10
21
30
40
51
60
70
80
91
101
111
120
130
140
150
161
171
180
191
200
211
221
231
240
251
261
271
280
291
300
310
320
331
341
351
360
371
380
390
400
411
420
431
440
451
461
471
480
491
501
511
521
531
540
551
560
570
581
591
600
611
620
630
641
651
661
671
680
691
701
711
720
731
740
751
761
771
780
791
800
811
821
831
840
851

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