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A109251 formatted as a simple table:

n a(n)
0 0
1 1
2 22
3 247
4 2569
5 25556
6 250853
7 2444359
8 23727305
9 229924367
10 2227121996
11 21578747909
12 209214982913
13 2030133769624
14 19717814526785 

[0,1,22,247,2569,25556,250853,2444359,23727305,
 229924367,2227121996,21578747909,209214982913,
 2030133769624,19717814526785]

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

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