A210355 T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one, two or three distinct clockwise edge differences

40, 431, 431, 4615, 13566, 4615, 49484, 423694, 423694, 49484, 530580, 13288986, 38415623, 13288986, 530580, 5689274, 416960476, 3506487749, 3506487749, 416960476, 5689274, 61005068, 13085817650, 320128196268, 934012605398

Offset

1,1

Comments

Table starts

........40............431...............4615..................49484

.......431..........13566.............423694...............13288986

......4615.........423694...........38415623.............3506487749

.....49484.......13288986.........3506487749...........934012605398

....530580......416960476.......320128196268........248817068842201

...5689274....13085817650.....29234187801911......66307681156504928

..61005068...410707536246...2669774395715994...17671175952055398322

.654148428.12890620403588.243817307546400921.4709507638686926395711

Links

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

Example

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

Crossrefs

Sequence in context: A228122 A247408 A285855 * A210348 A055750 A290611

Adjacent sequences: A210352 A210353 A210354 * A210356 A210357 A210358

Keyword

nonn,tabl

Author

R. H. Hardin Mar 20 2012

Status

approved