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A047913 as a simple table

na(n)
11
21
31
41
51
62
71
81
92
103
111
121
132
144
155
161
171
182
194
207
219
221
231
242
254
267
2712
2816
291
301
312
324
337
3413
3522
3628
371
381
392
404
417
4213
4324
4439
4550
461
471
482
494
507
5113
5224
5342
5470
5589
561
571
582
594
607
6113
6224
6343
6476
65126
66159
671
681
692
704
717
7213
7324
7443
7578
76137
77225
78285

[1,1,1,1,1,2,1,1,2,3,1,1,2,4,5,1,1,2,4,7,9,1,1,2,
 4,7,12,16,1,1,2,4,7,13,22,28,1,1,2,4,7,13,24,39,
 50,1,1,2,4,7,13,24,42,70,89,1,1,2,4,7,13,24,43,76,
 126,159,1,1,2,4,7,13,24,43,78,137,225,285]