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A237468 Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the lower median minus the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
6954, 99086, 1417638, 21134116, 309663940, 4493037466, 65361132006, 963521033936, 14101784196522, 205512527589358, 3000745020165556, 44025822065285190, 644030619009581892, 9404258309421483816 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A237472

LINKS

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

EXAMPLE

Some solutions for n=2

..1..0..1..2..0....1..1..1..0..2....1..2..1..1..0....0..1..2..0..2

..1..1..0..2..0....0..2..2..1..2....1..1..2..1..1....1..1..0..1..1

..0..0..2..0..1....2..1..2..0..1....2..2..2..1..2....2..0..0..1..0

CROSSREFS

Sequence in context: A072870 A183666 A252368 * A028542 A263287 A234111

Adjacent sequences:  A237465 A237466 A237467 * A237469 A237470 A237471

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 08 2014

STATUS

approved

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Last modified May 24 12:01 EDT 2022. Contains 354033 sequences. (Running on oeis4.)