A203252 T(n,k)=Number of nXk 0..3 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other

4, 16, 16, 48, 88, 48, 116, 12, 12, 116, 220, 776, 680, 776, 220, 288, 760, 18440, 18440, 760, 288, 232, 16104, 62512, 753168, 62512, 16104, 232, 96, 120260, 1282126, 50071584, 50071584, 1282126, 120260, 96, 1520, 287100, 178938580

Offset

1,1

Comments

Table starts

...4.....16......48......116......220.....288.......232.....96.1520

..16.....88......12......776......760...16104....120260.287100

..48.....12.....680....18440....62512.1282126.178938580

.116....776...18440...753168.50071584

.220....760...62512.50071584

.288..16104.1282126

.232.120260

..96

Links

Table of n, a(n) for n=1..39.

Example

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

Crossrefs

Sequence in context: A223406 A366683 A075382 * A224064 A224050 A224281

Adjacent sequences: A203249 A203250 A203251 * A203253 A203254 A203255

Keyword

nonn,tabl

Author

R. H. Hardin Dec 30 2011

Status

approved