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A281133 as a simple table

n a(n)
1 0
2 0
3 24
4 112
5 504
6 2528
7 11712
8 52160
9 230048
10 1000320
11 4294016
12 18264832
13 77098880
14 323290624
15 1347997696
16 5593390080
17 23110676992
18 95130810368
19 390287108096
20 1596449140736
21 6512744568832
22 26504685772800
23 107628465111040

[0,0,24,112,504,2528,11712,52160,230048,1000320,
 4294016,18264832,77098880,323290624,1347997696,
 5593390080,23110676992,95130810368,390287108096,
 1596449140736,6512744568832,26504685772800,
 107628465111040]

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Last modified April 24 18:05 EDT 2024. Contains 371962 sequences. (Running on oeis4.)