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A234737 Number of (n+1)X(7+1) 0..7 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 8 (constant stress 1X1 tilings) 0
426120, 760608, 1283880, 2723040, 5395128, 13083552, 29705640, 79520352, 200901240, 578901408, 1586287080, 4838786400, 14115215928 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A234738

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A233499 A282337 A192228 * A206082 A209794 A234448

Adjacent sequences:  A234734 A234735 A234736 * A234738 A234739 A234740

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 30 2013

STATUS

approved

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Last modified June 18 14:52 EDT 2019. Contains 324213 sequences. (Running on oeis4.)