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A027667 Number of independent subsets of nodes of 3^n cube (P_3 X ... X P_3). 0
1, 5, 63, 70633, 25090373284177 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A112788 A004193 A193326 * A193834 A193875 A193184

Adjacent sequences:  A027664 A027665 A027666 * A027668 A027669 A027670

KEYWORD

nonn,nice

AUTHOR

R. H. Hardin (rhhardin(AT)att.net)

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Last modified February 17 14:50 EST 2012. Contains 206050 sequences.