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%I #12 Aug 20 2017 09:57:03
%S 2,9,110,2116,59670,2509056,147357840,12001640704,1321710590682,
%T 196996776086916
%N Number of irredundant sets in the n X n bishop graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/BishopGraph.html">Bishop Graph</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/IrredundantSet.html">Irredundant Set</a>
%F a(n) = A290712(n) * A290713(n) for n > 1. - _Andrew Howroyd_, Aug 10 2017
%Y Cf. A290712, A290713, A291060.
%K nonn,more
%O 1,1
%A _Eric W. Weisstein_, Aug 09 2017
%E a(5)-a(10) from _Andrew Howroyd_, Aug 19 2017
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