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A053730 formatted as a simple table:

n a(n)
0 1
1 2
2 6
3 20
4 64
5 192
6 544
7 1472
8 3840
9 9728
10 24064
11 58368
12 139264
13 327680
14 761856
15 1753088
16 3997696
17 9043968
18 20316160
19 45350912
20 100663296
21 222298112
22 488636416
23 1069547520
24 2332033024
25 5066719232
26 10972299264
27 23689428992

[1,2,6,20,64,192,544,1472,3840,9728,24064,58368,
 139264,327680,761856,1753088,3997696,9043968,
 20316160,45350912,100663296,222298112,488636416,
 1069547520,2332033024,5066719232,10972299264,
 23689428992]

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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