A184217 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock sum greater than 6

106, 1036, 1036, 9247, 30994, 9247, 85600, 808007, 808007, 85600, 782637, 22249026, 57181621, 22249026, 782637, 7189899, 601469417, 4411909035, 4411909035, 601469417, 7189899, 65937529, 16373312263, 330196807919, 977644225220

Offset

1,1

Comments

Table starts

.........106.............1036..................9247......................85600

........1036............30994................808007...................22249026

........9247...........808007..............57181621.................4411909035

.......85600.........22249026............4411909035...............977644225220

......782637........601469417..........330196807919............208292231201647

.....7189899......16373312263........25009565161353..........45067897172765323

....65937529.....444611005885......1885849010087814........9695194773105361105

...605100146...12084357225118....142446559265305753.....2090316835956005082252

..5551579376..328338345988788..10752643612703642576...450298899065135536168802

.50938410285.8922222967151091.811869697394792482929.97035410726195213179750677

Links

R. H. Hardin, Table of n, a(n) for n = 1..112

Example

Some solutions for 4X3
..2..2..0....0..2..1....2..2..1....0..2..0....2..2..1....2..2..2....2..2..2
..3..2..3....3..3..3....1..2..2....2..3..2....0..3..3....3..3..0....2..1..3
..0..3..1....3..2..2....1..3..3....3..1..3....3..3..1....1..2..3....3..2..2
..3..3..1....3..2..3....3..3..2....3..2..2....2..3..2....1..3..2....1..2..1

Crossrefs

Sequence in context: A187588 A051974 A188837 * A184209 A233047 A206755

Adjacent sequences: A184214 A184215 A184216 * A184218 A184219 A184220

Keyword

nonn,tabl

Author

R. H. Hardin Jan 10 2011

Status

approved