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A284851 as a simple table

na(n)
10
21
30
41
50
60
70
81
90
101
110
120
130
141
150
161
170
181
190
201
210
220
230
241
250
261
270
280
290
301
310
321
330
341
350
361
370
380
390
401
410
421
430
440
450
461
470
481
490
500
510
521
530
541
550
560
570
581
590
601
610
621
630
641
650
660
670
681
690
701
710
720
730
741
750
761
770
781
790
801
810
820
830
841
850
861

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