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A210077
T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one or three distinct clockwise edge differences
9
33, 313, 313, 2908, 7653, 2908, 27129, 183628, 183628, 27129, 252951, 4437262, 11333893, 4437262, 252951, 2358878, 107248254, 707627792, 707627792, 107248254, 2358878, 21997263, 2593403383, 44179487805, 114628150378, 44179487805
OFFSET
1,1
COMMENTS
Table starts
........33...........313..............2908................27129
.......313..........7653............183628..............4437262
......2908........183628..........11333893............707627792
.....27129.......4437262.........707627792.........114628150378
....252951.....107248254.......44179487805.......18568897568014
...2358878....2593403383.....2759914868891.....3010470408635630
..21997263...62718516080...172422974616663...488107505505461510
.205132657.1516857228897.10772379159246366.79144584564609543464
LINKS
EXAMPLE
Some solutions for n=4 k=3
..3..3..2..0....2..1..2..3....0..0..2..1....0..1..0..2....1..1..3..3
..0..3..1..1....3..1..3..3....3..3..1..1....2..1..0..0....3..1..3..1
..3..3..1..0....2..1..1..2....0..3..1..1....1..1..1..0....3..3..3..1
..1..1..1..0....3..3..1..1....2..1..1..0....0..0..1..2....1..1..3..2
..2..1..1..0....2..1..1..1....0..1..0..0....0..0..0..2....3..1..1..1
CROSSREFS
Sequence in context: A297492 A256109 A241966 * A210070 A258638 A081932
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 17 2012
STATUS
approved