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A235106 Number of (n+1)X(7+1) 0..6 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant stress tilted 1X1 tilings) 0
1025770, 2047890, 4256548, 9680994, 22754394, 57035088, 147069470, 398750942, 1109052788, 3214407394, 9538239362, 29310492288, 92087563578, 298251455546, 986587292812, 3352471090498 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A235107

LINKS

Table of n, a(n) for n=1..16.

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A263129 A241790 A143133 * A159816 A254567 A235722

Adjacent sequences:  A235103 A235104 A235105 * A235107 A235108 A235109

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 03 2014

STATUS

approved

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Last modified October 30 03:10 EDT 2020. Contains 338076 sequences. (Running on oeis4.)