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A012496 as a simple table

n a(n)
0 1
1 1
2 1
3 -4
4 -19
5 0
6 445
7 1304
8 -14663
9 -109120
10 718265
11 10816896
12 -50970203
13 -1441841024
14 4876389557
15 258762139648
16 -548752599567
17 -60872480247808
18 47436062951281
19 18224782774259712
20 12631837146241245

[1,1,1,-4,-19,0,445,1304,-14663,-109120,718265,
 10816896,-50970203,-1441841024,4876389557,
 258762139648,-548752599567,-60872480247808,
 47436062951281,18224782774259712,
 12631837146241245]

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Last modified May 21 12:48 EDT 2022. Contains 353908 sequences. (Running on oeis4.)