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A013115 formatted as a simple table:

n a(n)
0 1
1 -2
2 4
3 -16
4 88
5 -560
6 4184
7 -37952
8 398848
9 -4613632
10 58835456
11 -835257344
12 12993783424
13 -217535518720
14 3911934210560
15 -75654182936576
16 1562951627091968
17 -34235182359642112
18 793328025614454784

[1,-2,4,-16,88,-560,4184,-37952,398848,-4613632,
 58835456,-835257344,12993783424,-217535518720,
 3911934210560,-75654182936576,1562951627091968,
 -34235182359642112,793328025614454784]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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