A187645 T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock having sum 9

3139, 17701, 17701, 101419, 79259, 101419, 596653, 363533, 363533, 596653, 3703651, 1747075, 1342083, 1747075, 3703651, 23126677, 9368309, 5273797, 5273797, 9368309, 23126677, 145502251, 51019403, 24351579, 17048731, 24351579

Offset

1,1

Comments

Table starts

.......3139......17701....101419....596653...3703651..23126677..145502251

......17701......79259....363533...1747075...9368309..51019403..283738813

.....101419.....363533...1342083...5273797..24351579.115259453..564564211

.....596653....1747075...5273797..17048731..67476109.275808307.1180360357

....3703651....9368309..24351579..67476109.234213387

...23126677...51019403.115259453.275808307

..145502251..283738813.564564211

..935121589.1661843915

.6025592131

Links

R. H. Hardin, Table of n, a(n) for n = 1..49

Example

Some solutions for 5X4
..0..1..1..0....0..2..1..0....0..1..2..1....0..2..0..0....0..0..2..2
..0..2..0..1....0..1..1..0....2..0..0..1....0..2..0..2....1..1..2..1
..2..1..2..1....2..1..1..2....1..1..2..1....2..1..2..0....2..0..1..0
..1..1..0..1....1..1..1..1....1..0..2..2....1..0..1..1....0..0..2..2
..0..1..1..1....0..2..0..0....1..1..0..0....0..2..0..2....0..2..2..0

Crossrefs

Sequence in context: A267721 A031554 A180297 * A187640 A187639 A322536

Adjacent sequences: A187642 A187643 A187644 * A187646 A187647 A187648

Keyword

nonn,tabl

Author

R. H. Hardin Mar 12 2011

Status

approved