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A218513 as a simple table

n a(n)
0 0
1 0
2 0
3 7200
4 168506880
5 112603286160
6 15108392957760
7 775405390866960
8 20886647215714560
9 353998543659193440
10 4231366997071432320
11 38508081275604409920
12 281586666065022616320
13 1720887594454493527920
14 9053942417801770507200
15 41955877772610102690480

[0,0,0,7200,168506880,112603286160,15108392957760,
 775405390866960,20886647215714560,
 353998543659193440,4231366997071432320,
 38508081275604409920,281586666065022616320,
 1720887594454493527920,9053942417801770507200,
 41955877772610102690480]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)