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A052574 formatted as a simple table:

n a(n)
0 1
1 1
2 4
3 30
4 312
5 4080
6 64080
7 1174320
8 24595200
9 579519360
10 15172012800
11 436929292800
12 13726748851200
13 467182235520000
14 17123385600921600
15 672444082582272000
16 28167703419727872000
17 1253648083943743488000

[1,1,4,30,312,4080,64080,1174320,24595200,
 579519360,15172012800,436929292800,13726748851200,
 467182235520000,17123385600921600,
 672444082582272000,28167703419727872000,
 1253648083943743488000]

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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