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A005149 as a simple table

n a(n)
1 1
2 -24
3 852
4 -35744
5 1645794
6 -80415216
7 4094489992
8 -214888573248
9 11542515402255
10 -631467591949480
11 35063515239394764
12 -1971043639046131296
13 111949770626330347638
14 -6414671157989386260432
15 370360217892318010055832
16 -21525284426246779936288192

[1,-24,852,-35744,1645794,-80415216,4094489992,
 -214888573248,11542515402255,-631467591949480,
 35063515239394764,-1971043639046131296,
 111949770626330347638,-6414671157989386260432,
 370360217892318010055832,
 -21525284426246779936288192]

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Last modified November 21 15:11 EST 2014. Contains 249783 sequences.