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A305556 as a simple table

na(n)
11
21
31
41
51
62
71
83
91
104
111
121
135
143
151
166
176
181
197
2010
211
228
2315
241
251
269
2721
284
291
3010
3128
3210
331
3411
3536
3620
371
3812
3945
4035
411
4213
4355
4456
451
461
4714
4866
4984
505
511
5215
5378
54120
5515
561
5716
5891
59165
6035
611
6217
63105
64220
6570
661
6718
68120
69286
70126
711
7219
73136
74364
75210
761
771
7820
79153
80455

[1,1,1,1,1,2,1,3,1,4,1,1,5,3,1,6,6,1,7,10,1,8,15,
 1,1,9,21,4,1,10,28,10,1,11,36,20,1,12,45,35,1,13,
 55,56,1,1,14,66,84,5,1,15,78,120,15,1,16,91,165,
 35,1,17,105,220,70,1,18,120,286,126,1,19,136,364,
 210,1,1,20,153,455]