%I #3 Aug 08 2015 23:48:52
%S 0,0,2,24,86,326,16848,1165538,80584148
%N Twice A136279.
%C Another version of A136279 (appropriate since each 2-cycle has two members).
%K nonn
%O 1,3
%A _Don Knuth_, Mar 26 2008
