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A235103 Number of (n+1)X(4+1) 0..6 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant stress tilted 1X1 tilings) 1
12578, 35354, 101464, 304746, 937034, 2978124, 9680994, 32349918, 110399304, 385970050, 1376013714, 5011652964, 18582312010, 70201181566, 269458590752, 1050901159562, 4154691374234, 16642155164228, 67410127701802 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A235107

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..208

EXAMPLE

Some solutions for n=3

..4..6..5..3..4....5..2..3..2..5....2..5..6..3..2....5..3..1..3..6

..3..1..4..6..3....3..4..1..4..3....5..4..1..2..5....4..6..0..6..5

..4..6..5..3..4....6..3..4..3..6....0..3..4..1..0....5..3..1..3..6

..5..3..6..0..5....0..1..6..1..0....5..4..1..2..5....0..2..4..2..1

CROSSREFS

Sequence in context: A251296 A205757 A205587 * A216990 A237086 A190109

Adjacent sequences:  A235100 A235101 A235102 * A235104 A235105 A235106

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 03 2014

STATUS

approved

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Last modified September 22 02:38 EDT 2021. Contains 347605 sequences. (Running on oeis4.)