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A007679 formatted as a simple table:

n a(n)
1 1
2 1
3 4
4 9
5 16
6 31
7 64
8 129
9 256
10 511
11 1024
12 2049
13 4096
14 8191
15 16384
16 32769
17 65536
18 131071
19 262144
20 524289
21 1048576
22 2097151
23 4194304
24 8388609
25 16777216
26 33554431
27 67108864
28 134217729
29 268435456
30 536870911

[1,1,4,9,16,31,64,129,256,511,1024,2049,4096,8191,
 16384,32769,65536,131071,262144,524289,1048576,
 2097151,4194304,8388609,16777216,33554431,
 67108864,134217729,268435456,536870911]

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.


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