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A013613 as a simple table

na(n)
01
11
26
31
412
536
61
718
8108
9216
101
1124
12216
13864
141296
151
1630
17360
182160
196480
207776
211
2236
23540
244320
2519440
2646656
2746656
281
2942
30756
317560
3245360
33163296
34326592
35279936
361
3748
381008
3912096
4090720
41435456
421306368
432239488
441679616

[1,1,6,1,12,36,1,18,108,216,1,24,216,864,1296,1,
 30,360,2160,6480,7776,1,36,540,4320,19440,46656,
 46656,1,42,756,7560,45360,163296,326592,279936,1,
 48,1008,12096,90720,435456,1306368,2239488,
 1679616]