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A193728 as a simple table

na(n)
01
12
21
38
410
53
632
764
842
99
10128
11352
12360
13162
1427
15512
161792
172496
181728
19594
2081
212048
228704
2315360
2414400
257560
262106
27243
288192
2940960
3087552
31103680
3273440
3331104
347290
35729
3632768
37188416
38473088
39677376
40604800
41344736
42122472
4324786
442187

[1,2,1,8,10,3,32,64,42,9,128,352,360,162,27,512,
 1792,2496,1728,594,81,2048,8704,15360,14400,7560,
 2106,243,8192,40960,87552,103680,73440,31104,7290,
 729,32768,188416,473088,677376,604800,344736,
 122472,24786,2187]