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A000179 formatted as a simple table:

n a(n)
0 1
1 0
2 0
3 1
4 2
5 13
6 80
7 579
8 4738
9 43387
10 439792
11 4890741
12 59216642
13 775596313
14 10927434464
15 164806435783
16 2649391469058
17 45226435601207
18 817056406224416
19 15574618910994665
20 312400218671253762
21 6577618644576902053

[1,0,0,1,2,13,80,579,4738,43387,439792,4890741,
 59216642,775596313,10927434464,164806435783,
 2649391469058,45226435601207,817056406224416,
 15574618910994665,312400218671253762,
 6577618644576902053]

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


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