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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; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..4.

CROSSREFS

Sequence in context: A275763 A004193 A193326 * A193834 A193875 A193184

Adjacent sequences:  A027664 A027665 A027666 * A027668 A027669 A027670

KEYWORD

nonn,nice

AUTHOR

R. H. Hardin

STATUS

approved

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Last modified January 20 16:38 EST 2019. Contains 319335 sequences. (Running on oeis4.)