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A161120 as a simple table

n a(n)
0 0
1 1
2 4
3 27
4 240
5 2625
6 34020
7 509355
8 8648640
9 164189025
10 3445942500
11 79222218075
12 1979900722800
13 53443570205025
14 1549547301802500
15 48028060502296875
16 1584712538529120000
17 55458748565165570625

[0,1,4,27,240,2625,34020,509355,8648640,164189025,
 3445942500,79222218075,1979900722800,
 53443570205025,1549547301802500,48028060502296875,
 1584712538529120000,55458748565165570625]

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Last modified September 1 06:23 EDT 2024. Contains 375575 sequences. (Running on oeis4.)