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A099263 formatted as a simple table:

n a(n)
1 1
2 2
3 5
4 15
5 52
6 203
7 877
8 4140
9 21146
10 115929
11 677359
12 4189550
13 27243100
14 184941915
15 1301576801
16 9433737120
17 69998462014
18 529007272061
19 4054799902003
20 31415584940850
21 245382167055488
22 1928337630016767
23 15222915798289765

[1,2,5,15,52,203,877,4140,21146,115929,677359,
 4189550,27243100,184941915,1301576801,9433737120,
 69998462014,529007272061,4054799902003,
 31415584940850,245382167055488,1928337630016767,
 15222915798289765]

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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