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A284772 as a simple table

na(n)
10
21
30
40
51
60
70
81
90
101
110
120
131
140
150
161
170
181
190
200
211
220
230
241
250
260
271
280
290
301
310
321
330
340
351
360
370
381
390
401
410
420
431
440
450
461
470
480
491
500
510
521
530
541
550
560
571
580
590
601
610
621
630
640
651
660
670
681
690
701
710
720
731
740
750
761
770
781
790
800
811
820
830
841
850
860

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