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A095823 formatted as a simple table:

n a(n)
1 1
2 4
3 18
4 32
5 600
6 4320
7 11760
8 322560
9 3265920
10 1728000
11 439084800
12 821145600
13 817689600
14 1220496076800
15 19615115520000
16 111588212736000
17 863812325376000
18 115242726703104000
19 15722836107264000
20 3742926166425600000

[1,4,18,32,600,4320,11760,322560,3265920,1728000,
 439084800,821145600,817689600,1220496076800,
 19615115520000,111588212736000,863812325376000,
 115242726703104000,15722836107264000,
 3742926166425600000]

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.


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