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A207799 T(n,k) = Number of (n+1) X (k+1) 0..3 arrays with every 2 X 3 or 3 X 2 subblock having an unequal number of clockwise and counterclockwise edge increases. 9
256, 2208, 2208, 20800, 37408, 20800, 184416, 643968, 643968, 184416, 1714176, 11074704, 22773384, 11074704, 1714176, 15376544, 190505040, 748331168, 748331168, 190505040, 15376544, 141647296, 3276916896, 26462419832 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

........256.........2208............20800............184416...........1714176

.......2208........37408...........643968..........11074704.........190505040

......20800.......643968.........22773384.........748331168.......26462419832

.....184416.....11074704........748331168.......51169273632.....3518595143968

....1714176....190505040......26462419832.....3518595143968...507960770486000

...15376544...3276916896.....873499447968...242220624640736.68409320823594368

..141647296..56368726448...30836924266632.16680713033508736

.1279043040.969636795792.1019966379785120

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..60

EXAMPLE

Some solutions for n=4, k=3:

..0..2..2..1....1..3..2..0....3..1..3..1....3..3..2..0....0..1..0..0

..1..0..1..1....0..0..1..1....3..0..2..1....0..2..1..1....0..1..2..0

..2..2..3..0....0..2..1..3....3..3..3..0....3..0..0..1....3..3..1..0

..0..0..0..0....3..2..1..0....1..2..2..2....1..0..2..1....1..3..2..1

..1..2..2..3....2..0..0..2....2..1..3..3....1..0..3..0....0..0..3..3

CROSSREFS

Sequence in context: A346961 A206063 A206056 * A207792 A236500 A236495

Adjacent sequences:  A207796 A207797 A207798 * A207800 A207801 A207802

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Feb 20 2012

STATUS

approved

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Last modified August 17 03:11 EDT 2022. Contains 356180 sequences. (Running on oeis4.)