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%I #6 Mar 17 2023 01:59:28
%S 1,-2,-4,8,0,0,64,256,256,-4608,-1024,47104,192512,-81920,-901120,
%T 7077888,-5832704,786432,143917056,1167065088,2945449984,-5890899968,
%U -2445279232,58082721792,-70145540096,-2669691273216
%N Hankel transform of A186039.
%Y Cf. A186039.
%K sign
%O 0,2
%A _Paul Barry_, Feb 11 2011