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A280710 as a simple table

na(n)
10
20
30
40
50
61
70
80
90
101
110
120
130
141
151
160
170
180
190
200
211
221
230
240
250
261
270
280
290
300
310
320
331
341
351
360
370
381
391
400
410
420
430
440
450
461
470
480
490
500
511
520
530
540
551
560
571
581
590
600
610
621
630
640
651
660
670
680
691
700
710
720
730
741
750
760
771
780
790
800
810
821
830
840
851
861
871
880
890
900
911
920
931
941
951
960
970
980
990
1000
1010
1020
1030
1040
1050

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