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A203580 as a simple table

na(n)
00
11
22
33
44
55
66
72
83
94
105
116
127
138
144
155
166
177
188
199
2010
216
227
238
249
2510
2611
2712
288
299
3010
3111
3212
3313
3414
3510
3611
3712
3813
3914
4015
4116
4212
4313
4414
4515
4616
4717
4818
494
505
516
527
538
549
5510
566
577
588
599
6010
6111
6212
638
649
6510
6611
6712
6813
6914
7010
7111
7212
7313
7414

[0,1,2,3,4,5,6,2,3,4,5,6,7,8,4,5,6,7,8,9,10,6,7,8,
 9,10,11,12,8,9,10,11,12,13,14,10,11,12,13,14,15,
 16,12,13,14,15,16,17,18,4,5,6,7,8,9,10,6,7,8,9,10,
 11,12,8,9,10,11,12,13,14,10,11,12,13,14]