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A012211 as a simple table

n a(n)
0 1
1 -1
2 21
3 -1149
4 119305
5 -20082841
6 4984310493
7 -1711500674389
8 776816116717457
9 -450301381427975089
10 324553968807761095973
11 -284661632752853556677805
12 298518404617173649259722905 

[1,-1,21,-1149,119305,-20082841,4984310493,
 -1711500674389,776816116717457,
 -450301381427975089,324553968807761095973,
 -284661632752853556677805,
 298518404617173649259722905]

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Last modified June 11 15:38 EDT 2024. Contains 373311 sequences. (Running on oeis4.)