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A234981 Number of (n+1)X(7+1) 0..4 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 8 1
87941706, 115047739004, 134849510289180, 191417616710931012, 270097938511601692116, 392106856447778173931430, 570208378092719094299657992, 834762291450956511667124577786 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A234982

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..9

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A344804 A003825 A114259 * A054434 A164850 A253269

Adjacent sequences:  A234978 A234979 A234980 * A234982 A234983 A234984

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 02 2014

STATUS

approved

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Last modified September 18 20:10 EDT 2021. Contains 347534 sequences. (Running on oeis4.)