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A045754 as a simple table

n a(n)
0 1
1 1
2 8
3 120
4 2640
5 76560
6 2756160
7 118514880
8 5925744000
9 337767408000
10 21617114112000
11 1534815101952000
12 119715577952256000
13 10175824125941760000
14 936175819586641920000
15 92681406139077550080000
16 9824229050742220308480000
17 1110137882733870894858240000 

[1,1,8,120,2640,76560,2756160,118514880,
 5925744000,337767408000,21617114112000,
 1534815101952000,119715577952256000,
 10175824125941760000,936175819586641920000,
 92681406139077550080000,9824229050742220308480000,
 1110137882733870894858240000]

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Last modified April 18 20:10 EDT 2024. Contains 371781 sequences. (Running on oeis4.)