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A000505 formatted as a simple table:

n a(n)
5 1
6 57
7 1191
8 15619
9 156190
10 1310354
11 9738114
12 66318474
13 423281535
14 2571742175
15 15041229521
16 85383238549
17 473353301060
18 2575022097600
19 13796160184500
20 73008517581444
21 382493246941965
22 1987497491971605
23 10258045633638475

[1,57,1191,15619,156190,1310354,9738114,66318474,
 423281535,2571742175,15041229521,85383238549,
 473353301060,2575022097600,13796160184500,
 73008517581444,382493246941965,1987497491971605,
 10258045633638475]

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


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