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A234329 Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant stress 1X1 tilings) 1
13056, 203008, 3271560, 53812604, 886832036, 14698619604, 243143542208, 4038567639984, 66909511664976, 1112993440706864, 18463328032062420, 307559050379497960, 5108531833472596748, 85219174193834018396 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A234333

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=1

..3..1..0..1..0....1..3..2..3..2....1..0..1..2..0....0..1..1..3..2

..3..0..0..2..2....2..3..1..3..3....2..2..2..2..1....3..3..2..3..1

CROSSREFS

Sequence in context: A252638 A252191 A256730 * A165679 A111887 A249495

Adjacent sequences:  A234326 A234327 A234328 * A234330 A234331 A234332

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 23 2013

STATUS

approved

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Last modified February 27 22:46 EST 2020. Contains 332312 sequences. (Running on oeis4.)