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A233907 as a simple table

n a(n)
0 1
1 9
2 99
3 1218
4 16065
5 222138
6 3178140
7 46656324
8 698868216
9 10639125640
10 164128169205
11 2560224004884
12 40314178429707
13 639948824981928
14 10230035192533800
15 164541833894991240
16 2660919275605834701
17 43239781879996449825
18 705687913212419321800
19 11561996402992103418000
20 190100812111989146008641

[1,9,99,1218,16065,222138,3178140,46656324,
 698868216,10639125640,164128169205,2560224004884,
 40314178429707,639948824981928,10230035192533800,
 164541833894991240,2660919275605834701,
 43239781879996449825,705687913212419321800,
 11561996402992103418000,190100812111989146008641]

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Last modified April 13 19:42 EDT 2021. Contains 342941 sequences. (Running on oeis4.)