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A309020 as a simple table

na(n)
00
11
21
32
41
52
62
72
81
91
102
113
122
132
142
151
161
170
181
192
202
214
223
233
242
251
262
272
282
291
301
310
321
330
340
350
361
373
382
393
402
414
424
435
443
452
463
472
482
490
501
511
522
533
542
552
562
571
581
590
601
610
620
630
641
651
660
67-1
680
690
700
711
721
734
743
754
762
772
783
793
802
813
824
836
844
855
865
874
883
890
902

[0,1,1,2,1,2,2,2,1,1,2,3,2,2,2,1,1,0,1,2,2,4,3,3,
 2,1,2,2,2,1,1,0,1,0,0,0,1,3,2,3,2,4,4,5,3,2,3,2,2,
 0,1,1,2,3,2,2,2,1,1,0,1,0,0,0,1,1,0,-1,0,0,0,1,1,
 4,3,4,2,2,3,3,2,3,4,6,4,5,5,4,3,0,2]