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A160199 as a simple table

na(n)
11
21
31
41
51
66
71
84
91
1010
111
1224
131
1414
1515
168
171
1854
191
2040
2121
2222
231
242304
251
2626
279
2856
291
3027000
311
32512
3333
3434
3535
36216
371
3838
3939
406400
411
4274088
431
4488
45135
4646
471
4873728
491
50250
5151
52104
531
5426244
5555
5612544
5757
5858
591
6025920000
611
6262
63189
64512
6565
66287496
671

[1,1,1,1,1,6,1,4,1,10,1,24,1,14,15,8,1,54,1,40,21,
 22,1,2304,1,26,9,56,1,27000,1,512,33,34,35,216,1,
 38,39,6400,1,74088,1,88,135,46,1,73728,1,250,51,
 104,1,26244,55,12544,57,58,1,25920000,1,62,189,
 512,65,287496,1]