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A118069 as a simple table

n a(n)
0 4
1 4
2 9
3 25
4 25
5 121
6 721
7 5041
8 40321
9 362881
10 3628801
11 39916813
12 479001601
13 6227020801
14 87178291201
15 1307674368001
16 20922789888001
17 355687428096001
18 6402373705728001
19 121645100408832001
20 2432902008176640001

[4,4,9,25,25,121,721,5041,40321,362881,3628801,
 39916813,479001601,6227020801,87178291201,
 1307674368001,20922789888001,355687428096001,
 6402373705728001,121645100408832001,
 2432902008176640001]

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Last modified December 14 21:25 EST 2017. Contains 296020 sequences.