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A180654 as a simple table

n a(n)
0 1
1 1
2 3
3 -13
4 -321
5 13434
6 103022
7 -60330726
8 4269491916
9 422156508320
10 -186525936386808
11 22409109754552542
12 6675208135884604731
13 -4757044765774305527628
14 1070232275818826170463982

[1,1,3,-13,-321,13434,103022,-60330726,4269491916,
 422156508320,-186525936386808,22409109754552542,
 6675208135884604731,-4757044765774305527628,
 1070232275818826170463982]

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Last modified February 25 17:53 EST 2024. Contains 370332 sequences. (Running on oeis4.)