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A005637 formatted as a simple table:

n a(n)
0 1
1 1
2 2
3 2
4 5
5 10
6 45
7 284
8 3960
9 110356
10 6153615
11 640014800
12 120777999811
13 41158185726269
14 25486682538903526
15 28943747337743989421
16 60828392582465943631269
17 238439312273287947102629832

[1,1,2,2,5,10,45,284,3960,110356,6153615,
 640014800,120777999811,41158185726269,
 25486682538903526,28943747337743989421,
 60828392582465943631269,
 238439312273287947102629832]

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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