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A297247 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
181
192
203
214
225
236
247
258
269
2710
2811
2912
3013
3114
320
330
340
351
362
373
384
395
406
417
428
439
4410
4511
4612
4713
480
490
500
510
521
532
543
554
565
576
587
598
609
6110
6211
6312
640
650
660
670
680
691
702
713
724
735
746
757
768
779
7810
7911
800
810
820

[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2,3,4,5,6,7,
 8,9,10,11,12,13,14,0,0,0,1,2,3,4,5,6,7,8,9,10,11,
 12,13,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,0,0,0,0,
 0,1,2,3,4,5,6,7,8,9,10,11,0,0,0]