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A234442 Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant stress 1X1 tilings) 1
87808, 1578036, 26023136, 483370700, 8028682984, 153582428536, 2561421896376, 50550841783616, 845061581153064, 17225338328311560, 288096942502518832, 6067393540914839284, 101341384172618252496, 2204356516673445136156 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A234443

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..125

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A232674 A236788 A183658 * A204508 A180106 A190382

Adjacent sequences:  A234439 A234440 A234441 * A234443 A234444 A234445

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 26 2013

STATUS

approved

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Last modified December 2 07:33 EST 2021. Contains 349437 sequences. (Running on oeis4.)