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A069851 as a simple table

na(n)
10
21
31
40
51
60
71
80
90
100
112
120
132
140
150
160
172
180
192
200
210
220
231
240
250
260
270
280
291
300
311
320
330
340
350
360
372
380
390
400
412
420
431
440
450
460
471
480
491
500
510
520
532
540
550
560
570
580
592
600
612
620
630
640
650
660
672
680
690
700
712
720
731
740
750
760
770
780
792
800
810
820
831
840
850
860
870
880
892
900
910
920
930
940
950
960
972
980
990
1000
1011
1020
1031
1040
1050

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