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A231715 as a simple table

na(n)
11
20
31
40
51
60
70
80
91
100
111
120
130
140
152
160
172
180
190
200
211
220
231
240
250
260
270
280
290
300
310
320
331
340
351
360
370
380
392
400
412
420
430
440
451
460
471
480
490
500
510
520
530
540
550
560
571
580
591
600
610
620
632
640
652
660
670
680
691
700
711
720
730
740
750
760
770
780
790
800
811
820
831
840
850
860
872

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