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A099023 as a simple table

n a(n)
0 1
1 -1
2 4
3 -46
4 1024
5 -36976
6 1965664
7 -144361456
8 13997185024
9 -1731678144256
10 266182076161024
11 -49763143319190016
12 11118629668610842624
13 -2925890822304510631936
14 895658946905031792553984

[1,-1,4,-46,1024,-36976,1965664,-144361456,
 13997185024,-1731678144256,266182076161024,
 -49763143319190016,11118629668610842624,
 -2925890822304510631936,895658946905031792553984]

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Last modified March 28 10:31 EDT 2024. Contains 371240 sequences. (Running on oeis4.)