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A140721 formatted as a simple table:

n a(n)
0 1
1 -7
2 4
3 -28
4 16
5 -112
6 64
7 -448
8 256
9 -1792
10 1024
11 -7168
12 4096
13 -28672
14 16384
15 -114688
16 65536
17 -458752
18 262144
19 -1835008
20 1048576
21 -7340032
22 4194304
23 -29360128
24 16777216
25 -117440512
26 67108864
27 -469762048
28 268435456
29 -1879048192
30 1073741824

[1,-7,4,-28,16,-112,64,-448,256,-1792,1024,-7168,
 4096,-28672,16384,-114688,65536,-458752,262144,
 -1835008,1048576,-7340032,4194304,-29360128,
 16777216,-117440512,67108864,-469762048,268435456,
 -1879048192,1073741824]

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


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