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A189664 as a simple table

na(n)
10
21
30
40
50
61
70
81
90
100
111
120
130
141
150
160
170
181
190
201
210
220
230
241
250
261
270
280
291
300
310
320
331
340
351
360
370
381
390
400
410
421
430
441
450
460
471
480
490
501
510
520
530
541
550
561
570
580
590
601
610
621
630
640
651
660
670
681
690
700
710
721
730
741
750
760
770
781
790
801
810
820
831
840
850
860
871
880
891
900
910
921
930
940
951
960
970
980
991
1000
1011
1020
1030
1040
1051
1060
1071
1080
1090
1101
1110
1120
1130
1141
1150
1161
1170
1180
1191
1200
1210
1221

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