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A260393 as a simple table

na(n)
10
21
30
41
50
61
70
81
90
101
110
120
130
141
150
161
170
181
190
201
210
221
230
241
250
261
270
281
290
301
310
321
330
341
350
360
370
381
390
401
410
421
430
441
450
461
470
480
490
501
510
521
530
541
550
561
570
581
590
600
610
621
630
641
650
661
670
681
690
701
710
721
730
741
750
761
770
781
790
801
810
821
830
840
850
861

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