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A053501 formatted as a simple table:

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 3628801
12 43545601
13 283046401
14 1320883201
15 4953312001
16 15850598401
17 44910028801
18 115482931201
19 274271961601
20 609493248001
21 1279935820801
22 4644633666390681601
23 106826520356358566401
24 1281918194457262387201

[1,1,1,1,1,1,1,1,1,1,1,3628801,43545601,283046401,
 1320883201,4953312001,15850598401,44910028801,
 115482931201,274271961601,609493248001,
 1279935820801,4644633666390681601,
 106826520356358566401,1281918194457262387201]

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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.


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