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A158341 formatted as a simple table:

n a(n)
0 0
1 1
2 4
3 18
4 128
5 1404
6 18261
7 310346
8 5896727
9 135624239
10 3933101823
11 121926157640
12 4511267827531
13 184961980943492
14 7953365180610400 

[0,1,4,18,128,1404,18261,310346,5896727,135624239,
 3933101823,121926157640,4511267827531,
 184961980943492,7953365180610400]

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

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