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A055308 formatted as a simple table:

n a(n)
8 8
9 9144
10 2178000
11 270111600
12 23449219200
13 1635398519040
14 98861289246720
15 5425893817344000
16 278673669001728000
17 13673851998782976000
18 650477329618365849600
19 30322668859342072012800

[8,9144,2178000,270111600,23449219200,
 1635398519040,98861289246720,5425893817344000,
 278673669001728000,13673851998782976000,
 650477329618365849600,30322668859342072012800]

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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