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A328831 as a simple table

na(n)
10
20
30
40
50
61
70
80
90
101
110
121
130
140
150
160
170
181
190
202
210
220
230
241
250
260
271
280
290
301
310
320
330
341
350
361
370
380
390
401
410
420
430
440
450
461
471
481
490
500
510
520
530
541
550
560
570
581
590
601
610
620
630
640
650
661
670
681
690
700
710
721
730
740
750
760
770
781
790
802
810
820
830
840
850
861
870
880
890
901
910
921
930
940
950
961
970
980
990
1001
1010
1021
1030
1040
1050

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