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A321999 as a simple table

na(n)
00
10
21
32
43
54
65
76
87
98
10-1
110
121
132
143
154
165
176
187
198
200
211
222
233
244
255
266
277
288
299
301
312
323
334
345
356
367
378
389
3910
402
413
424
435
446
457
468
479
4810
4911
503
514
525
536
547
558
569
5710
5811
5912
604
615
626
637
648
659
6610
6711
6812
6913
705
716
727
738
749
7510
7611
7712
7813
7914
806
817
828
839
8410
8511
8612
8713
8814
8915
907

[0,0,1,2,3,4,5,6,7,8,-1,0,1,2,3,4,5,6,7,8,0,1,2,3,
 4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,10,2,3,4,5,6,7,8,9,
 10,11,3,4,5,6,7,8,9,10,11,12,4,5,6,7,8,9,10,11,12,
 13,5,6,7,8,9,10,11,12,13,14,6,7,8,9,10,11,12,13,
 14,15,7]