A209960 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having one, three or four distinct clockwise edge differences

71, 567, 567, 4521, 12161, 4521, 36057, 260201, 260201, 36057, 287559, 5569307, 14922177, 5569307, 287559, 2293335, 119198607, 856216289, 856216289, 119198607, 2293335, 18289737, 2551206049, 49124545369, 131724081683, 49124545369

Offset

1,1

Comments

Table starts

........71...........567.............4521................36057

.......567.........12161...........260201..............5569307

......4521........260201.........14922177............856216289

.....36057.......5569307........856216289.........131724081683

....287559.....119198607......49124545369.......20262771645033

...2293335....2551206049....2818513213257.....3117032354510683

..18289737...54603359537..161711349015585...479493044479186433

.145863801.1168673933963.9278144587101729.73760462168440328563

Links

R. H. Hardin, Table of n, a(n) for n = 1..312

Example

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

Crossrefs

Sequence in context: A341426 A250982 A250975 * A209953 A251390 A251383

Adjacent sequences: A209957 A209958 A209959 * A209961 A209962 A209963

Keyword

nonn,tabl

Author

R. H. Hardin Mar 16 2012

Status

approved