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A025447 as a simple table

na(n)
01
11
21
31
40
50
60
70
81
91
101
110
120
130
140
150
161
171
180
190
200
210
220
230
241
250
260
271
281
291
300
310
320
330
340
351
361
370
380
390
400
410
420
431
440
450
460
470
480
490
500
510
520
530
541
551
560
570
580
590
600
610
621
630
641
651
661
670
680
690
700
710
721
731
740
750
760
770
780
790
801
811
820
830
840
850
860
870
880
890
900
911
921
930
940
950
960
970
980
991
1000
1010
1020
1030
1040
1050
1060
1070

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