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A081011 formatted as a simple table:

n a(n)
0 4
1 15
2 91
3 612
4 4183
5 28659
6 196420
7 1346271
8 9227467
9 63245988
10 433494439
11 2971215075
12 20365011076
13 139583862447
14 956722026043
15 6557470319844
16 44945570212855
17 308061521170131
18 2111485077978052
19 14472334024676223

[4,15,91,612,4183,28659,196420,1346271,9227467,
 63245988,433494439,2971215075,20365011076,
 139583862447,956722026043,6557470319844,
 44945570212855,308061521170131,2111485077978052,
 14472334024676223]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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