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Duplicate of A032184.
0

%I #21 Aug 08 2019 06:41:26

%S 4,16,96,768,7680,92160,1290240,20643840,371589120,7431782400,

%T 163499212800,3923981107200,102023508787200,2856658246041600,

%U 85699747381248000,2742391916199936000,93241325150797824000,3356687705428721664000,127554132806291423232000

%N Duplicate of A032184.

%K dead

%O 0,1

%A Gil Costa (gilpratacosta(AT)gmail.com), Jun 29 2007