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A185706 as a simple table

na(n)
10
20
31
40
50
60
70
80
90
100
110
120
131
140
150
160
170
180
190
200
210
220
231
240
250
260
270
280
290
300
310
320
330
340
350
360
370
380
390
400
410
420
431
440
450
460
470
480
490
500
510
520
531
540
550
560
570
580
590
600
610
620
630
640
650
660
670
680
690
700
710
720
731
740
750
760
770
780
790
800
810
820
831
840
850
860
870
880
890
900
910
920
930
940
950
960
970
980
990
1000
1010
1020
1031
1040
1050
1060
1070
1080
1090
1100
1110
1120
1131
1140
1150
1160
1170
1180
1190
1200

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