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A072257 formatted as a simple table:

n a(n)
0 -6
1 -15
2 -27
3 21
4 597
5 4437
6 25941
7 136533
8 677205
9 3233109
10 15029589
11 68506965
12 307582293
13 1364546901
14 5995058517
15 26127717717
16 113100805461
17 486762960213
18 2084490794325
19 8887718991189

[-6,-15,-27,21,597,4437,25941,136533,677205,
 3233109,15029589,68506965,307582293,1364546901,
 5995058517,26127717717,113100805461,486762960213,
 2084490794325,8887718991189]

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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.


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