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A235005 Number of (n+1)X(4+1) 0..7 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
104338, 1049470, 11587376, 162585790, 2432380948, 40037217640, 676947457572, 11824787869510, 208878010076942, 3736584044188300, 67274015119680910, 1219544630997859452, 22219457252029643404, 406909415794274700932 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A235007

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..83

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A129241 A290535 A253709 * A231143 A249528 A233857

Adjacent sequences:  A235002 A235003 A235004 * A235006 A235007 A235008

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 02 2014

STATUS

approved

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Last modified October 20 02:54 EDT 2019. Contains 328244 sequences. (Running on oeis4.)