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A234995 Number of (n+1)X(4+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
31944, 229228, 1843956, 19087908, 208674708, 2489486392, 30119101476, 376753198536, 4734900474112, 60585326899188, 778145896663160, 10118849072747616, 132122488737660308, 1741401808205233096 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A234998

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..139

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A237165 A134124 A203738 * A236587 A255079 A235309

Adjacent sequences:  A234992 A234993 A234994 * A234996 A234997 A234998

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 02 2014

STATUS

approved

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Last modified May 21 00:36 EDT 2022. Contains 353886 sequences. (Running on oeis4.)