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A145013 One quarter of the number of n X n nonnegative integer arrays with every 2 X 2 subblock summing to 3. 0
5, 26, 79, 293, 779, 2555, 6475, 20111, 50195, 151991 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..11.

CROSSREFS

Sequence in context: A081886 A081530 A254831 * A096943 A166810 A210367

Adjacent sequences:  A145010 A145011 A145012 * A145014 A145015 A145016

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 29 2008

EXTENSIONS

Changed positive to nonnegative, added n X n. - R. H. Hardin, Sep 30 2008

STATUS

approved

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Last modified March 27 06:59 EDT 2017. Contains 284144 sequences.