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A179745 as a simple table

na(n)
11
21
31
41
53
61
71
87
94
101
111
1215
1312
145
151
161
1731
1832
1918
206
211
221
2363
2480
2556
2625
277
281
291
301
31127
32192
33160
3488
3533
368
371
381
39255
40448
41432
42280
43129
4442
459
461

[1,1,1,1,3,1,1,7,4,1,1,15,12,5,1,1,31,32,18,6,1,1,
 63,80,56,25,7,1,1,1,127,192,160,88,33,8,1,1,255,
 448,432,280,129,42,9,1]