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A274771 as a simple table

na(n)
10
20
31
41
52
61
73
81
93
102
114
121
135
143
152
162
176
183
197
202
213
224
238
241
258
265
277
283
299
302
3110
324
334
346
355
363
3711
387
395
402
4112
423
4313
444
455
468
4714
482
4913
508
516
525
5315
547
558
563
577
589
5916
602
6117
6210
633
646
655
664
6718
686
698
705
7119
723
7320
7411
758
767
7710
785
7921
802

[0,0,1,1,2,1,3,1,3,2,4,1,5,3,2,2,6,3,7,2,3,4,8,1,
 8,5,7,3,9,2,10,4,4,6,5,3,11,7,5,2,12,3,13,4,5,8,
 14,2,13,8,6,5,15,7,8,3,7,9,16,2,17,10,3,6,5,4,18,
 6,8,5,19,3,20,11,8,7,10,5,21,2]