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A291291 as a simple table

na(n)
00
11
20
31
41
50
61
70
80
90
101
111
120
131
141
151
161
170
180
190
201
211
220
230
241
250
260
271
280
290
300
310
321
330
341
351
361
371
380
390
400
411
420
431
441
450
461
471
480
491
501
511
521
530
541
551
560
571
581
590
600
611
621
630
640
651
661
670
680
691
700
710
720
730
741
751
761
770
781
791
800
810
820
831
841
850
860
871
880
890
901
910
920
931
940
950
960
970
981
991
1000
1010
1020
1030
1041
1050

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