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A009991 formatted as a simple table:

n a(n)
0 1
1 47
2 2209
3 103823
4 4879681
5 229345007
6 10779215329
7 506623120463
8 23811286661761
9 1119130473102767
10 52599132235830049
11 2472159215084012303
12 116191483108948578241
13 5460999706120583177327

[1,47,2209,103823,4879681,229345007,10779215329,
 506623120463,23811286661761,1119130473102767,
 52599132235830049,2472159215084012303,
 116191483108948578241,5460999706120583177327]

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.


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