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A271381 as a simple table

na(n)
01
12
22
31
41
52
62
71
82
94
103
111
121
133
142
151
163
175
183
191
202
213
222
230
242
255
263
273
283
294
301
312
324
335
343
352
365
374
383
392
404
416
422
433
444
455
462
472
484
493
502
512
525
536
544
553
562
573
582
592
604
614
623
633
645
657
664
675
685
696
704
712
726
739
746
752
764
775
781
793
808

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