A204782 T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no 3X3 subblock having three equal diagonal elements or three equal antidiagonal elements, and new values 0..2 introduced in row major order

2592, 55296, 55296, 1180224, 2973696, 1180224, 25190406, 160435446, 160435446, 25190406, 537665796, 8643947616, 21570701058, 8643947616, 537665796, 11475976536, 465761252736, 2890032532056, 2890032532056, 465761252736

Offset

1,1

Comments

Table starts

.........2592............55296.............1180224................25190406

........55296..........2973696...........160435446..............8643947616

......1180224........160435446.........21570701058...........2890032532056

.....25190406.......8643947616.......2890032532056.........966430412947296

....537665796.....465761252736.....387664140116880......323760110018338584

..11475976536...25096321973400...51989763458957400...108409087458981913446

.244944162648.1352264628934656.6972630432052561776.36302705908249227882336

Links

R. H. Hardin, Table of n, a(n) for n = 1..110

Example

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

Crossrefs

Sequence in context: A326747 A156322 A096298 * A204775 A360841 A269192

Adjacent sequences: A204779 A204780 A204781 * A204783 A204784 A204785

Keyword

nonn,tabl

Author

R. H. Hardin Jan 19 2012

Status

approved