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A181842 as a simple table

na(n)
11
21
32
41
52
63
71
82
95
104
111
122
135
1410
155
161
172
185
1912
2012
216
221
232
245
2512
2618
2728
287
291
302
315
3212
3320
3438
3532
368
371
382
395
4012
4120
4244
4357
4448
459
461
472
485
4912
5020
5146
5267
53100
5455
5510

[1,1,2,1,2,3,1,2,5,4,1,2,5,10,5,1,2,5,12,12,6,1,2,
 5,12,18,28,7,1,2,5,12,20,38,32,8,1,2,5,12,20,44,
 57,48,9,1,2,5,12,20,46,67,100,55,10]