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A161722 as a simple table

n a(n)
2 2
3 -44
4 2166
5 -196888
6 28730410
7 -6148123332
8 1813990148894
9 -705775346640176
10 350112935442888018
11 -215681051222514096220
12 161537815119247080938182
13 -144555133640020128085896264
14 152323571317104251881943249786

[2,-44,2166,-196888,28730410,-6148123332,
 1813990148894,-705775346640176,350112935442888018,
 -215681051222514096220,161537815119247080938182,
 -144555133640020128085896264,
 152323571317104251881943249786]

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Last modified August 10 01:45 EDT 2020. Contains 336363 sequences. (Running on oeis4.)