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A252621 Number of (6+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 5 6 or 8 and every 3X3 column and antidiagonal sum not equal to 0 3 5 6 or 8 1
5503, 37917, 153189, 617798, 4274586, 18149682, 82404422, 571397644, 2451795723, 11526421874, 81714444770, 352505179731, 1676004467136, 12066830677075, 52201486791538, 249256160558604, 1809616167926962, 7839226018586938 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 6 of A252615
LINKS
EXAMPLE
Some solutions for n=3
..0..1..2..2..1....0..2..3..3..2....2..3..3..2..0....0..2..3..3..2
..0..3..2..0..3....3..3..2..3..3....2..1..2..2..1....2..2..1..2..2
..2..3..3..2..3....1..2..2..1..2....3..3..2..3..3....2..0..3..2..3
..2..1..2..2..1....3..2..3..3..2....2..3..3..2..0....3..2..3..0..2
..0..3..2..3..3....3..3..2..3..0....2..1..2..2..1....2..2..1..2..2
..2..3..3..2..3....1..2..2..1..2....3..0..2..3..0....2..3..3..2..0
..2..1..2..2..1....0..2..3..3..2....2..3..3..2..1....3..2..3..0..2
..3..3..2..3..0....3..3..2..0..3....2..1..2..2..1....2..2..1..0..2
CROSSREFS
Sequence in context: A031617 A045132 A096702 * A234561 A252511 A250876
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 19 2014
STATUS
approved

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)