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A123485 as a simple table

n a(n)
1 0
2 0
3 0
4 2520
5 1814400
6 1888563600
7 2979953776800
8 6935468956416000
9 23019567930463104000
10 105689740661883810432000
11 653795414851090462030080000
12 5326203537908913517889391360000 

[0,0,0,2520,1814400,1888563600,2979953776800,
 6935468956416000,23019567930463104000,
 105689740661883810432000,
 653795414851090462030080000,
 5326203537908913517889391360000]

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Last modified August 30 23:09 EDT 2024. Contains 375550 sequences. (Running on oeis4.)