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A260644 as a simple table

na(n)
00
11
22
33
44
53
62
71
82
93
104
115
124
133
142
153
164
175
186
195
204
213
224
235
246
257
266
275
284
295
306
317
328
337
346
355
366
377
388
399
408
417
426
437
448
459
4610
479
488
497
508
519
5210
5311
5410
559
568
579
5810
5911
6012
6111
6210
639
6410
6511
6612
6713
6812
6911
7010
7111
7212
7313
7414
7513
7612
7711

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