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A278427 as a simple table

na(n)
01
11
21
32
41
51
63
72
81
91
104
113
123
131
141
155
164
175
183
191
201
216
225
237
246
254
261
271
287
296
309
319
328
334
341
351
368
377
3811
3912
4013
419
425
431
441
459
468
4713
4815
4918
5015
5112
525
531
541
5510
569
5715
5818
5923
6022
6121
6213
636
641
651
6611
6710
6817
6921
7028
7129
7231
7324
7416
756
761
771

[1,1,1,2,1,1,3,2,1,1,4,3,3,1,1,5,4,5,3,1,1,6,5,7,
 6,4,1,1,7,6,9,9,8,4,1,1,8,7,11,12,13,9,5,1,1,9,8,
 13,15,18,15,12,5,1,1,10,9,15,18,23,22,21,13,6,1,1,
 11,10,17,21,28,29,31,24,16,6,1,1]