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A207924 as a simple table

n a(n)
1 9
2 81
3 144
4 576
5 1936
6 6400
7 21904
8 73984
9 250000
10 846400
11 2862864
12 9684544
13 32764176
14 110838784
15 374964496
16 1268499456
17 4291298064
18 14517358144
19 49111878544
20 166144281664
21 562062085264
22 1901442429184
23 6432533627536

[9,81,144,576,1936,6400,21904,73984,250000,846400,
 2862864,9684544,32764176,110838784,374964496,
 1268499456,4291298064,14517358144,49111878544,
 166144281664,562062085264,1901442429184,
 6432533627536]

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Last modified September 18 11:01 EDT 2021. Contains 347518 sequences. (Running on oeis4.)