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A234919 Number of (n+1)X(6+1) 0..4 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
12360, 47980, 186500, 990956, 4834440, 28854040, 150606424, 948274980, 5093099972, 33282246680, 182453908840, 1227449650312, 6855533668528, 47143909716212, 268032385984924, 1871592421095824, 10821681133242880 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A234921

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A274247 A045080 A238051 * A183693 A096618 A238308

Adjacent sequences:  A234916 A234917 A234918 * A234920 A234921 A234922

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 01 2014

STATUS

approved

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Last modified October 27 09:08 EDT 2020. Contains 338035 sequences. (Running on oeis4.)