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A252211 Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum not equal to 0 2 5 6 or 7 0
874, 1078, 3303, 44776, 984604, 34351865, 1834743852, 150852965441, 19211276199350, 3761840357784412, 1133324153448762150, 526775964680392302044 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A252219
LINKS
EXAMPLE
Some solutions for n=4
..3..2..3..3..3..3....2..3..3..3..3..3....1..1..1..1..1..1....1..1..1..1..1..2
..2..3..3..3..2..3....3..3..2..3..3..3....2..1..1..1..1..1....1..1..1..1..1..1
..3..3..3..3..3..3....3..3..3..3..3..3....1..1..1..1..1..1....1..1..1..1..1..1
..3..2..3..3..3..3....3..3..3..2..3..3....1..1..1..1..1..2....1..1..1..1..2..1
..3..3..3..2..3..3....3..3..3..3..3..3....1..1..2..1..1..1....1..1..1..1..1..1
..2..3..3..3..3..3....2..3..3..3..3..3....1..1..1..1..1..1....1..2..1..1..1..2
CROSSREFS
Sequence in context: A251085 A334011 A206312 * A045258 A252219 A252212
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 15 2014
STATUS
approved

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Last modified March 1 20:05 EST 2024. Contains 370443 sequences. (Running on oeis4.)