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A115197 formatted as a simple table:

n a(n)
0 1
1 2
2 7
3 32
4 169
5 974
6 5947
7 37820
8 247885
9 1662890
10 11362399
11 78806936
12 553386097
13 3926523782
14 28108587139
15 202764451700
16 1472446595221
17 10755543924578
18 78973277044903
19 582558618222416
20 4315238786662585

[1,2,7,32,169,974,5947,37820,247885,1662890,
 11362399,78806936,553386097,3926523782,
 28108587139,202764451700,1472446595221,
 10755543924578,78973277044903,582558618222416,
 4315238786662585]

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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