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A234908 Number of (n+1)X(4+1) 0..7 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant stress tilted 1X1 tilings) 1
65048, 692608, 7067096, 87088300, 1035687060, 13775604012, 175004599884, 2424540636888, 31723187334888, 449888252601960, 5970366769567980, 86025115239391572, 1150587072601597108, 16789707566545824404 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A234911

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..103

EXAMPLE

Some solutions for n=1

..1..5..7..2..6....4..2..6..4..6....3..5..2..4..6....5..2..0..2..5

..0..3..4..0..3....3..0..5..2..3....4..7..3..6..7....7..5..4..5..7

CROSSREFS

Sequence in context: A198779 A104939 A183975 * A204640 A015344 A184148

Adjacent sequences:  A234905 A234906 A234907 * A234909 A234910 A234911

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 01 2014

STATUS

approved

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Last modified April 21 10:03 EDT 2019. Contains 322328 sequences. (Running on oeis4.)