%I #7 Apr 23 2020 10:35:09
%S 1,1,1,11,48253,135327729523895
%N Chromatic invariant of the n-hypercube graph.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/ChromaticInvariant.html">Chromatic Invariant</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/HypercubeGraph.html">Hypercube Graph</a>
%F a(n) = Sum_{k=2..2^n} (-1)^k*(k-2)!*A334159(n,k) for n > 0. - _Andrew Howroyd_, Apr 23 2020
%Y Cf. A295172, A295174, A334159.
%K nonn,more
%O 0,4
%A _Eric W. Weisstein_, Nov 16 2017
%E a(5) from _Andrew Howroyd_, Apr 23 2020