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A023959 as a simple table

na(n)
10
21
31
40
50
60
71
81
91
101
110
120
130
140
151
161
170
180
190
201
211
220
230
240
251
261
271
281
291
300
311
320
330
340
351
361
371
380
391
400
410
421
430
441
451
460
471
480
490
501
510
520
530
540
551
560
570
581
590
600
611
620
630
640
651
660
670
681
691
700
710
720
731
740
750
761
771
781
791
800
810
821
830
840
850
861
870
881
890
900
911
921
930
940
950
961
971
981
991
1001
1011
1020

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