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%I #17 Aug 08 2019 06:41:11
%S 1,2,3,8,20,45,144,448,1680,4725,17280,62208,290304,1254400,4465125,
%T 18144000,72990720,391910400,1881169920,9754214400,45660160000,
%U 205752960000,905748480000,5280992640000,28326238617600,162956344320000
%N Duplicate of A082914.
%K dead
%O 1,2
%A _Jon Perry_, Mar 26 2004