A210300 T(n,k)=Half the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having at most one duplicate clockwise edge difference

112, 1578, 1578, 22212, 78628, 22212, 312704, 3913002, 3913002, 312704, 4402192, 194768054, 688122928, 194768054, 4402192, 61973516, 9694276684, 121040117840, 121040117840, 9694276684, 61973516, 872455004, 482519042626, 21290108702694

Offset

1,1

Comments

Table starts

.........112.............1578.................22212.....................312704

........1578............78628...............3913002..................194768054

.......22212..........3913002.............688122928...............121040117840

......312704........194768054..........121040117840.............75244563204398

.....4402192.......9694276684........21290108702694..........46773822117508382

....61973516.....482519042626......3744799069935140.......29075895528477825602

...872455004...24016699289368....658686645074030420....18074362569780907584746

.12282307884.1195397128587610.115858857345804835112.11235513600375237582792174

Links

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

Example

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

Crossrefs

Sequence in context: A353782 A367363 A327633 * A210293 A203915 A233884

Adjacent sequences: A210297 A210298 A210299 * A210301 A210302 A210303

Keyword

nonn,tabl

Author

R. H. Hardin Mar 19 2012

Status

approved