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A026291 formatted as a simple table:

n a(n)
2 2
3 14
4 79
5 446
6 2530
7 14442
8 82913
9 478384
10 2771900
11 16119808
12 94038087
13 550083340
14 3225409094
15 18951732050
16 111562247565
17 657813211278
18 3884461464740
19 22968812720476
20 135978792939818

[2,14,79,446,2530,14442,82913,478384,2771900,
 16119808,94038087,550083340,3225409094,
 18951732050,111562247565,657813211278,
 3884461464740,22968812720476,135978792939818]

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.


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