A145054 One-third of the number of n X n nonnegative integer arrays with every 3 X 3 subblock summing to 3.

55, 475, 1807, 4627, 22075, 67603, 156763, 647467

Offset

3,1

Links

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

Crossrefs

Sequence in context: A355511 A129217 A116060 * A166839 A166827 A266035

Adjacent sequences: A145051 A145052 A145053 * A145055 A145056 A145057

Keyword

nonn

Author

R. H. Hardin, Sep 30 2008

Status

approved