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A297243 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
151
160
170
180
190
200
210
220
230
240
250
260
270
280
290
302
311
320
330
340
350
360
370
380
390
400
410
420
430
440
453
462
471
480
490
500
510
520
530
540
550
560
570
580
590
604
613
622
631
640
650
660
670
680
690
700
710
720
730
740
755
764
773
782
791
800
810
820
830
840
850
860

[0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,3,2,1,0,0,
 0,0,0,0,0,0,0,0,0,0,4,3,2,1,0,0,0,0,0,0,0,0,0,0,0,
 5,4,3,2,1,0,0,0,0,0,0,0]