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Chromatic invariant of the n-hypercube graph.
1

%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