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%I #13 May 04 2019 00:42:03
%S 1,4,118,27080
%N Multiplications between idempotent equivalence classes for n X n matrices over GF(2).
%C With the n X n matrices over GF(2) construct 3-tuples (a,b,c) where a*b = c. Map each of the three elements to their idempotent under self multiplication. Filter on unique 3-tuples.
%Y The idempotents are enumerated in A132186.
%K nonn,more
%O 1,2
%A _Chad Brewbaker_, Apr 08 2017