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A069843 as a simple table

na(n)
10
20
31
40
50
60
70
80
91
100
111
120
130
140
150
160
171
180
190
200
210
220
231
240
250
260
271
280
291
300
310
320
331
340
350
360
370
380
391
400
412
420
430
440
450
460
470
480
490
500
512
520
531
540
550
560
571
580
590
600
610
620
631
640
650
660
670
680
691
700
711
720
730
740
750
760
772
780
790
800
812
820
832
840
850
860
871
880
891
900
910
920
931
940
950
960
970
980
991
1000
1012
1020
1030
1040
1050

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