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

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

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