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A307298 as a simple table

na(n)
00
11
21
32
42
52
63
70
83
93
104
114
124
130
144
155
165
175
185
195
205
216
223
230
246
256
266
276
287
297
301
317
320
337
347
357
368
378
388
398
401
411
421
434
448
459
466
479
482
492
502
512
528
539
549
5510
5610
5710
581
593
609
613
629
633
6410
6510
6611
6711
6811
694
7010
714
724
7310
7410
7511
7611
7711
7812
799

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