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A235178 Number of (n+1)X(n+1) 0..5 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 5, with no adjacent elements equal (constant stress tilted 1X1 tilings) 0
72, 560, 3240, 19584, 99096, 540368, 2598040, 13521264, 64019304, 326134032, 1542290552, 7781321872 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A235186

LINKS

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

EXAMPLE

Some solutions for n=4

..3..1..3..1..2....2..3..1..3..1....3..2..3..2..3....2..3..2..3..1

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

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

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

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

CROSSREFS

Sequence in context: A164377 A156632 A204484 * A085718 A205329 A077120

Adjacent sequences:  A235175 A235176 A235177 * A235179 A235180 A235181

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 04 2014

STATUS

approved

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Last modified January 19 21:38 EST 2022. Contains 350466 sequences. (Running on oeis4.)