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A051049 formatted as a simple table:

n a(n)
0 1
1 1
2 4
3 7
4 16
5 31
6 64
7 127
8 256
9 511
10 1024
11 2047
12 4096
13 8191
14 16384
15 32767
16 65536
17 131071
18 262144
19 524287
20 1048576
21 2097151
22 4194304
23 8388607
24 16777216
25 33554431
26 67108864
27 134217727
28 268435456
29 536870911
30 1073741824

[1,1,4,7,16,31,64,127,256,511,1024,2047,4096,8191,
 16384,32767,65536,131071,262144,524287,1048576,
 2097151,4194304,8388607,16777216,33554431,
 67108864,134217727,268435456,536870911,
 1073741824]

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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.


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