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A300477 as a simple table

na(n)
20
31
40
50
60
70
80
91
100
110
120
130
140
151
160
170
180
190
200
211
220
230
241
250
260
270
280
290
300
310
321
331
340
350
360
370
381
390
400
410
420
430
440
450
460
470
480
490
500
510
520
530
541
550
561
570
580
590
600
610
620
630
640
650
660
670
681
691
700
710
720
730
740
751
761
770
780
790
800
811
820
830
840
850
860
871
880

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