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A122840 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
101
110
120
130
140
150
160
170
180
190
201
210
220
230
240
250
260
270
280
290
301
310
320
330
340
350
360
370
380
390
401
410
420
430
440
450
460
470
480
490
501
510
520
530
540
550
560
570
580
590
601
610
620
630
640
650
660
670
680
690
701
710
720
730
740
750
760
770
780
790
801
810
820
830
840
850
860
870
880
890
901
910
920
930
940
950
960
970
980
990
1002
1010
1020
1030
1040
1050

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