A209182 T(n,k)=Number of nXk 1..6 arrays with no element with value z exactly a city block distance of z from another element with value z

6, 35, 35, 199, 1104, 199, 1094, 31185, 31185, 1094, 5835, 782336, 3873287, 782336, 5835, 29917, 17015665, 364261071, 364261071, 17015665, 29917, 147568, 311027162, 24175529937, 99281772774, 24175529937, 311027162, 147568, 722298, 5208624406

Offset

1,1

Comments

Table starts

......6........35.........199........1094........5835.........29917.....147568

.....35......1104.......31185......782336....17015665.....311027162.5208624406

....199.....31185.....3873287...364261071.24175529937.1165940695438

...1094....782336...364261071.99281772774

...5835..17015665.24175529937

..29917.311027162

.147568

Links

R. H. Hardin, Table of n, a(n) for n = 1..31

Example

Some solutions for n=5 k=3
..4..4..3....3..1..2....4..4..6....3..4..2....3..5..4....5..3..4....2..2..6
..4..4..4....3..4..6....1..4..1....1..4..4....1..5..5....1..5..4....4..1..5
..1..5..2....5..1..4....5..6..2....3..4..5....2..4..6....6..4..2....6..3..3
..5..5..5....5..6..5....5..6..6....6..1..2....5..3..3....6..5..6....2..3..3
..1..6..3....6..3..5....5..5..5....3..5..5....4..4..3....1..2..3....4..5..6

Crossrefs

Sequence in context: A359571 A145000 A354792 * A275407 A362306 A046025

Adjacent sequences: A209179 A209180 A209181 * A209183 A209184 A209185

Keyword

nonn,tabl

Author

R. H. Hardin Mar 05 2012

Status

approved