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A210276 T(n,k)=Half the number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having two or three distinct clockwise edge differences 9
35, 273, 273, 2130, 5558, 2130, 16620, 113248, 113248, 16620, 129684, 2307956, 6028871, 2307956, 129684, 1011912, 47036870, 321050788, 321050788, 47036870, 1011912, 7895856, 958632858, 17097482699, 44678808183, 17097482699, 958632858 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......35..........273.............2130................16620

......273.........5558...........113248..............2307956

.....2130.......113248..........6028871............321050788

....16620......2307956........321050788..........44678808183

...129684.....47036870......17097482699........6218088462292

..1011912....958632858.....910532241954......865403655856588

..7895856..19537398722...48490791961375...120443009719061218

.61610640.398181683100.2582399328204990.16762728653468925176

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..264

EXAMPLE

Some solutions for n=4 k=3

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

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

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

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

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

CROSSREFS

Sequence in context: A220929 A251931 A267627 * A210269 A219575 A219711

Adjacent sequences:  A210273 A210274 A210275 * A210277 A210278 A210279

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 19 2012

STATUS

approved

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Last modified December 3 22:32 EST 2021. Contains 349468 sequences. (Running on oeis4.)