A210335 T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having two or three distinct clockwise edge differences

39, 406, 406, 4200, 11877, 4200, 43519, 344659, 344659, 43519, 450903, 10050240, 27838382, 10050240, 450903, 4672093, 293095459, 2266459861, 2266459861, 293095459, 4672093, 48410727, 8549740834, 184424586007, 517186072378

Offset

1,1

Comments

Table starts

........39...........406..............4200..................43519

.......406.........11877............344659...............10050240

......4200........344659..........27838382.............2266459861

.....43519......10050240........2266459861...........517186072378

....450903.....293095459......184424586007........117888703860657

...4672093....8549740834....15012328786175......26888341896724303

..48410727..249408131339..1221987668386411....6132398417786621509

.501617911.7275728429567.99470467438933662.1398664622985458705816

Links

R. H. Hardin, Table of n, a(n) for n = 1..144

Example

Some solutions for n=4 k=3
..1..0..0..0....0..1..1..1....0..1..0..1....3..2..2..1....2..2..2..2
..0..0..1..2....1..2..2..3....3..2..3..2....1..2..3..0....3..2..3..3
..1..0..1..3....0..3..3..2....3..2..2..1....1..3..2..1....1..1..2..1
..1..0..1..1....0..3..0..1....1..1..2..0....1..1..1..0....1..2..1..0
..0..1..0..0....2..1..2..1....1..0..0..2....3..2..1..0....2..3..1..0

Crossrefs

Sequence in context: A238102 A266172 A229601 * A210328 A231993 A357958

Adjacent sequences: A210332 A210333 A210334 * A210336 A210337 A210338

Keyword

nonn,tabl

Author

R. H. Hardin Mar 20 2012

Status

approved