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A123290 formatted as a simple table:

n a(n)
2 2
3 8
4 36
5 156
6 652
7 2668
8 10796
9 43436
10 174252
11 698028
12 2794156
13 11180716
14 44731052
15 178940588
16 715795116
17 2863245996
18 11453115052
19 45812722348
20 183251413676
21 733006703276
22 2932028910252
23 11728119835308
24 46912487729836

[2,8,36,156,652,2668,10796,43436,174252,698028,
 2794156,11180716,44731052,178940588,715795116,
 2863245996,11453115052,45812722348,183251413676,
 733006703276,2932028910252,11728119835308,
 46912487729836]

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Last modified December 10 12:09 EST 2009. Contains 170569 sequences.


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