%I #3 Mar 30 2012 17:37:01
%S 2,2,24,462,11160,341580,12608400,547343370,27331736040,1544172271740,
%T 97398535948560,6785134202537460,517427034160916880,
%U 42873386093615717640,3835533156158013710400
%N Doubles (index 2+) under "BHJ" (reversible, identity, labeled) transform.
%K nonn
%O 1,1
%A _Christian G. Bower_