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A234408 Number of (n+1)X(3+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 12 and no adjacent elements equal 1
21288, 578080, 14995212, 462953524, 14549138832, 478670480044, 15886650199580, 533501091404568, 17967312031924692, 606986126862531280, 20523360399941872764, 694518680263046221964, 23508716912398645936956 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A234412

LINKS

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

EXAMPLE

Some solutions for n=1

..6..3..6..5....0..6..3..6....4..2..5..3....1..2..6..2....2..3..5..2

..1..0..4..0....3..4..0..2....6..0..6..0....5..0..3..0....0..6..2..5

CROSSREFS

Sequence in context: A345830 A236644 A178282 * A177857 A254385 A254392

Adjacent sequences:  A234405 A234406 A234407 * A234409 A234410 A234411

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 25 2013

STATUS

approved

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Last modified May 20 04:56 EDT 2022. Contains 353851 sequences. (Running on oeis4.)