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A178649 as a simple table

na(n)
11
21
31
44
51
61
71
832
99
101
111
1248
131
141
151
16512
171
18162
191
2080
211
221
231
249216
2525
261
27243
28112
291
301
311
3216384
331
341
351
36279936
371
381
391
4025600
411
421
431
44176
45405
461
471
487077888
4949
501250
511
52208

[1,1,1,4,1,1,1,32,9,1,1,48,1,1,1,512,1,162,1,80,1,
 1,1,9216,25,1,243,112,1,1,1,16384,1,1,1,279936,1,
 1,1,25600,1,1,1,176,405,1,1,7077888,49,1250,1,208]