A252332 Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 3 5 6 or 8 and every 3X3 diagonal and antidiagonal sum not equal to 0 3 5 6 or 8

39981, 40178, 180469, 632453, 3999229, 19701604, 76990025, 492999163, 2520993313, 10349882135, 66879484623, 346316367984, 1469330829789, 9567743491373, 49841941516603, 215437747782647, 1409084461727701

Offset

1,1

Comments

Column 6 of A252334

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=3
..0..2..3..3..2..3..0..2....3..3..2..3..3..2..3..3....0..3..2..3..3..2..3..0
..3..2..3..3..2..0..3..2....0..3..2..3..3..2..0..3....3..3..2..3..0..2..3..3
..2..1..2..2..1..2..2..1....2..2..1..2..2..1..2..2....2..2..1..2..2..1..2..2
..3..2..0..3..2..3..3..2....3..0..2..3..3..2..3..3....3..0..2..3..3..2..3..0
..0..2..3..3..2..3..3..2....0..3..2..3..3..2..3..0....3..3..2..3..3..2..0..3

Crossrefs

Sequence in context: A251757 A250334 A250909 * A106772 A015328 A251970

Adjacent sequences: A252329 A252330 A252331 * A252333 A252334 A252335

Keyword

nonn

Author

R. H. Hardin, Dec 16 2014

Status

approved