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A235302 Number of (n+1)X(n+1) 0..5 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 6 (constant stress 1X1 tilings) 0
70, 518, 2118, 10790, 38182, 168998, 568902, 2360486, 7845670, 31545638, 105340998, 417228710 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A235310

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=5

..1..4..0..4..1..3....1..3..1..5..1..4....4..1..5..1..5..1....4..1..3..1..3..0

..4..1..3..1..4..0....4..0..4..2..4..1....0..3..1..3..1..3....1..4..0..4..0..3

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

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

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

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

CROSSREFS

Sequence in context: A220365 A007330 A060541 * A229576 A234556 A183715

Adjacent sequences:  A235299 A235300 A235301 * A235303 A235304 A235305

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 05 2014

STATUS

approved

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Last modified February 24 10:11 EST 2020. Contains 332209 sequences. (Running on oeis4.)