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A331582 as a simple table

n a(n)
0 1
1 -1
2 4
3 0
4 -1654
5 102750
6 -4079389
7 -178722208
8 83191059372
9 -14561829897345
10 1115121827539325
11 403631463559529040
12 -251989999508801085674
13 76158421344845152140737
14 -3994730250899559184766830
15 -13162858116922635098226480000
16 10823217968258750568539067678392

[1,-1,4,0,-1654,102750,-4079389,-178722208,
 83191059372,-14561829897345,1115121827539325,
 403631463559529040,-251989999508801085674,
 76158421344845152140737,
 -3994730250899559184766830,
 -13162858116922635098226480000,
 10823217968258750568539067678392]

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Last modified April 23 16:40 EDT 2024. Contains 371916 sequences. (Running on oeis4.)