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A145054 One-third of the number of n X n nonnegative integer arrays with every 3 X 3 subblock summing to 3. 0
55, 475, 1807, 4627, 22075, 67603, 156763, 647467 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

LINKS

Table of n, a(n) for n=3..10.

CROSSREFS

Sequence in context: A075740 A129217 A116060 * A166839 A166827 A266035

Adjacent sequences:  A145051 A145052 A145053 * A145055 A145056 A145057

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 30 2008

STATUS

approved

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Last modified February 24 03:22 EST 2020. Contains 332195 sequences. (Running on oeis4.)