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A000919 formatted as a simple table:

n a(n)
1 0
2 0
3 0
4 24
5 240
6 1560
7 8400
8 40824
9 186480
10 818520
11 3498000
12 14676024
13 60780720
14 249401880
15 1016542800
16 4123173624
17 16664094960
18 67171367640
19 270232006800
20 1085570781624
21 4356217681200
22 17466686971800
23 69992221794000
24 280345359228024
25 1122510953731440

[0,0,0,24,240,1560,8400,40824,186480,818520,
 3498000,14676024,60780720,249401880,1016542800,
 4123173624,16664094960,67171367640,270232006800,
 1085570781624,4356217681200,17466686971800,
 69992221794000,280345359228024,1122510953731440]

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


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