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A244221 as a simple table

na(n)
00
11
20
31
40
50
61
70
81
90
100
111
120
131
140
151
160
171
180
190
201
210
221
230
240
251
260
271
280
291
300
311
320
330
341
350
361
370
380
391
400
411
420
431
440
451
460
470
481
490
501
510
520
531
540
551
560
571
580
591
600
610
621
630
641
650
660
671
680
691
700
711
720
731
740
750
761
770
781
790
800
811
820
831
840
851
860
871
880
890
901
910
921
930
940
951
960
971
980
991
1000
1011
1020
1030
1041
1050
1061
1070
1080
1091
1100
1111
1120
1131
1140
1151
1160
1170
1181
1190
1201
1210
1220
1231
1240
1251
1260
1271
1280
1291
1300
1310
1320

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