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A155898 as a simple table

na(n)
11
21
31
41
50
61
70
80
91
101
110
120
130
140
150
160
170
181
190
201
211
220
230
240
250
261
271
281
290
301
311
320
330
340
350
360
370
380
390
400
410
420
430
440
451
460
470
480
490
500
510
520
531
540
551
561
570
580
590
600
611
620
630
640
651
660
670
680
690
700
710
720
731
740
750
760
770
780
790
800
810
820
830
840
850
860
870
880
890
900
911
920
931
940
950
960
970
980
990
1000
1011
1020
1030
1040
1051

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