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A087781 as a simple table

na(n)
11
20
30
40
51
60
70
80
90
100
112
120
130
140
150
160
170
180
192
200
210
220
230
240
250
260
270
280
292
300
312
320
330
340
350
360
370
380
390
400
412
420
430
440
450
460
470
480
490
500
510
520
530
540
552
560
570
580
592
600
612
620
630
640
650
660
670
680
690
700
712
720
730
740
750
760
770
780
792
800
810
820
830
840
850
860
870
880
892
900
910
920
930
940
952
960
970
980
990
1000
1012
1020
1030
1040
1050

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