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A287731 as a simple table

na(n)
11
21
32
41
51
62
73
83
94
105
115
124
133
143
152
161
171
182
193
203
214
225
235
244
255
267
278
287
297
308
317
325
336
349
3511
3610
3711
3813
3912
409
419
4212
4313
4411
4510
4611
479
486
495
507
518
527
537
548
557
565
574
585
595
604
613
623
632
641

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