%I A032320
%S A032320 2,2,12,126,1800,33540,757680,20149290,616940520,21378058800,
%T A032320 827126546400,35346832387020,1653593623521840,84055016334088800,
%U A032320 4613207941230688800,271883701342581277950
%N A032320 Doubles (index 2+) under "EGJ" (unordered, element, labeled) transform.
%Y A032320 Sequence in context: A013311 A136278 A087220 this_sequence A032227 A032069 
               A003090
%Y A032320 Adjacent sequences: A032317 A032318 A032319 this_sequence A032321 A032322 
               A032323
%K A032320 nonn
%O A032320 1,1
%A A032320 Christian G. Bower (bowerc(AT)usa.net)