A252589 Number of (n+2)X(3+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 0 1 2 7 8 or 9.

1741670, 78789896, 4406719658, 235079475068, 12835989195484, 705096840963142, 38682686932875858, 2122089819642263208, 116438754993629930084, 6389129401993359332400, 350573571351063441207832

Offset

1,1

Comments

Column 3 of A252590

Links

R. H. Hardin, Table of n, a(n) for n = 1..28

Example

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

Crossrefs

Sequence in context: A185844 A234130 A177695 * A124068 A244073 A237307

Adjacent sequences: A252586 A252587 A252588 * A252590 A252591 A252592

Keyword

nonn

Author

R. H. Hardin, Dec 18 2014

Status

approved