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A089980 Number of independent sets in the grid graph P_n x P_m. 2
1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 5, 7, 5, 1, 1, 8, 17, 17, 8, 1, 1, 13, 41, 63, 41, 13, 1, 1, 21, 99, 227, 227, 99, 21, 1, 1, 34, 239, 827, 1234, 827, 239, 34, 1, 1, 55, 577, 2999, 6743, 6743, 2999, 577, 55, 1, 1, 89, 1393, 10897, 36787, 55447, 36787, 10897, 1393, 89, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,5

COMMENTS

This table is indexed starting at 0. The table in A089934 is 1 based.

LINKS

Table of n, a(n) for n=0..65.

CROSSREFS

Main entry: A089934

Sequence in context: A144048 A113983 A199333 * A181031 A214987 A203946

Adjacent sequences:  A089977 A089978 A089979 * A089981 A089982 A089983

KEYWORD

nonn,easy,tabl

AUTHOR

Mitch Harris, Nov 17 2003

STATUS

approved

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Last modified May 23 17:33 EDT 2013. Contains 225610 sequences.