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A293050 as a simple table

n a(n)
0 1
1 0
2 0
3 0
4 24
5 120
6 720
7 5040
8 60480
9 725760
10 9072000
11 119750400
12 1756339200
13 28021593600
14 479480601600
15 8717829120000
16 168254102016000
17 3438311804928000
18 74160828758016000
19 1682757222322176000
20 40061786401308672000
21 998402161605488640000

[1,0,0,0,24,120,720,5040,60480,725760,9072000,
 119750400,1756339200,28021593600,479480601600,
 8717829120000,168254102016000,3438311804928000,
 74160828758016000,1682757222322176000,
 40061786401308672000,998402161605488640000]

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Last modified April 24 08:13 EDT 2024. Contains 371922 sequences. (Running on oeis4.)