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A041181 formatted as a simple table:

n a(n)
0 1
1 20
2 401
3 8040
4 161201
5 3232060
6 64802401
7 1299280080
8 26050404001
9 522307360100
10 10472197606001
11 209966259480120
12 4209797387208401
13 84405914003648140
14 1692328077460171201
15 33930967463207072160

[1,20,401,8040,161201,3232060,64802401,1299280080,
 26050404001,522307360100,10472197606001,
 209966259480120,4209797387208401,
 84405914003648140,1692328077460171201,
 33930967463207072160]

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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