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A078040 formatted as a simple table:

n a(n)
0 1
1 -2
2 4
3 -10
4 22
5 -50
6 114
7 -258
8 586
9 -1330
10 3018
11 -6850
12 15546
13 -35282
14 80074
15 -181730
16 412442
17 -936050
18 2124394
19 -4821378
20 10942266
21 -24833810
22 56361098
23 -127913250
24 290303066
25 -658851762
26 1495284394
27 -3393594050
28 7701866362
29 -17479623250
30 39670544074
31 -90033523298

[1,-2,4,-10,22,-50,114,-258,586,-1330,3018,-6850,
 15546,-35282,80074,-181730,412442,-936050,2124394,
 -4821378,10942266,-24833810,56361098,-127913250,
 290303066,-658851762,1495284394,-3393594050,
 7701866362,-17479623250,39670544074,-90033523298]

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.


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