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A185777 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum 8
81, 558, 558, 3844, 7074, 3844, 26784, 89118, 89118, 26784, 186624, 1151346, 2046098, 1151346, 186624, 1296000, 14837270, 48744342, 48744342, 14837270, 1296000, 9000000, 190416934, 1154712762, 2171002788, 1154712762, 190416934 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.........81..........558...........3844...........26784..........186624

........558.........7074..........89118.........1151346........14837270

.......3844........89118........2046098........48744342......1154712762

......26784......1151346.......48744342......2171002788.....95851024672

.....186624.....14837270.....1154712762.....95851024672...7861640359954

....1296000....190416934....27239862108...4212755548948.641850855452998

....9000000...2442333998...641595944400.184696487434352

...62568000..31384892214.15156754839024

..434972736.403218559222

.3022785216

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..59

EXAMPLE

Some solutions for 4X3

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

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

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

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

CROSSREFS

Sequence in context: A186528 A253294 A253164 * A253482 A186141 A185771

Adjacent sequences:  A185774 A185775 A185776 * A185778 A185779 A185780

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Feb 03 2011

STATUS

approved

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Last modified August 25 10:10 EDT 2019. Contains 326324 sequences. (Running on oeis4.)