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A012506 as a simple table

n a(n)
0 1
1 1
2 -19
3 445
4 -14663
5 718265
6 -50970203
7 4876389557
8 -548752599567
9 47436062951281
10 12631837146241245
11 -15669443125044502867
12 12502889747981009020841
13 -9927639811374322485212375

[1,1,-19,445,-14663,718265,-50970203,4876389557,
 -548752599567,47436062951281,12631837146241245,
 -15669443125044502867,12502889747981009020841,
 -9927639811374322485212375]

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Last modified July 25 13:05 EDT 2021. Contains 346290 sequences. (Running on oeis4.)