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A012518 as a simple table

n a(n)
0 1
1 0
2 0
3 0
4 -12
5 60
6 -450
7 2940
8 -14000
9 34272
10 929880
11 -22680240
12 373861224
13 -5345779296
14 65277500288
15 -619227292320
16 1524395375360
17 135262063693184
18 -5049805793018304
19 129393583799366016

[1,0,0,0,-12,60,-450,2940,-14000,34272,929880,
 -22680240,373861224,-5345779296,65277500288,
 -619227292320,1524395375360,135262063693184,
 -5049805793018304,129393583799366016]

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Last modified July 21 02:16 EDT 2024. Contains 374462 sequences. (Running on oeis4.)