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A064891 as a simple table

na(n)
10
21
32
40
52
60
71
80
90
100
111
120
131
140
150
160
172
180
191
200
210
220
232
240
250
260
270
280
293
300
311
320
330
340
350
360
371
380
390
400
411
420
433
440
450
460
473
480
490
500
510
520
533
540
550
560
570
580
591
600
613
620
630
640
650
660
671
680
690
700
711
720
731
740
750
760
770
780
791
800
810
820
832
840
850
860
870
880
891
900
910
920
930
940
950
960
971
980
990
1000
1011
1020
1031
1040
1050

[0,1,2,0,2,0,1,0,0,0,1,0,1,0,0,0,2,0,1,0,0,0,2,0,
 0,0,0,0,3,0,1,0,0,0,0,0,1,0,0,0,1,0,3,0,0,0,3,0,0,
 0,0,0,3,0,0,0,0,0,1,0,3,0,0,0,0,0,1,0,0,0,1,0,1,0,
 0,0,0,0,1,0,0,0,2,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,
 0,1,0,1,0,0]