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A283020 as a simple table

na(n)
10
21
30
40
50
60
70
80
90
100
111
120
130
141
150
160
170
181
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
341
350
360
370
380
390
400
410
421
430
440
450
461
470
481
490
500
510
520
531
540
550
560
570
580
590
600
610
620
630
640
650
660
671
680
690
700
710
720
730
741
750
760
770
780
790
800
810
821
830
840
850
860
870

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