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A232990 as a simple table

na(n)
01
10
20
31
40
51
60
70
81
90
101
110
120
131
140
151
160
170
181
190
201
210
220
231
240
251
260
270
281
290
301
310
320
331
340
351
360
370
381
390
401
410
420
431
440
451
460
470
481
490
501
510
520
531
540
551
560
570
581
590
601
610
620
631
640
651
660
670
681
690
701
710
720
731
740
751
760
770
781
790
801
810
820
831
840
851
860
870
881
890
901
910
920
931
940
951
960
970
981
990
1001
1010
1020
1031
1040
1051
1060

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