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A234994 Number of (n+1)X(3+1) 0..6 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant stress tilted 1X1 tilings) 1
5280, 32256, 222672, 1843956, 16100096, 147975544, 1383273540, 13136508448, 125711250208, 1212052600920, 11747496084952, 114450976252720, 1119844141118852, 11002825088380684, 108500718690978524 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A234998

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A274361 A223494 A265985 * A223341 A270798 A237002

Adjacent sequences:  A234991 A234992 A234993 * A234995 A234996 A234997

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 02 2014

STATUS

approved

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Last modified January 22 23:50 EST 2022. Contains 350504 sequences. (Running on oeis4.)