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A091728 as a simple table

na(n)
10
21
32
40
51
60
72
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
232
240
250
260
270
280
292
300
310
320
330
340
350
360
370
380
390
400
412
420
432
440
450
460
472
480
490
500
510
520
530
540
550
560
570
580
590
600
612
620
630
640
650
660
672
680
690
700
710
720
730
740
750
760
770
780
790
800
810
820
832
840
850
860
870
880
892
900
910
920
930
940
950
960
970
980
990
1000
1012
1020
1032
1040
1050
1060
1072
1080
1092
1100
1110
1120
1130
1140
1150
1160
1170
1180
1190
1200
1211

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