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A060631
Number of independent sets in an n-dimensional hypercube modulo symmetries of the hypercube.
0
2, 2, 3, 6, 21, 288, 519195
OFFSET
0,1
LINKS
Eric Weisstein's World of Mathematics, Hypercube Graph
Eric Weisstein's World of Mathematics, Independent Vertex Set
EXAMPLE
The six independent sets of the 3-cube are: the empty set, one vertex, two vertices on a common facet, two vertices on opposite corners, three neighbors of a vertex and four vertices of a tetrahedron.
CROSSREFS
Cf. A027624.
Sequence in context: A032908 A192366 A318039 * A275487 A096100 A260161
KEYWORD
nonn,nice,more
AUTHOR
David Eppstein, Apr 14 2001
EXTENSIONS
a(6) from Andrew Howroyd, Apr 23 2020
STATUS
approved