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A236906 Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the upper median plus the minimum of every 2X2 subblock equal 1
4448, 44836, 451396, 5345722, 62508118, 789404948, 9889339846, 129170196446, 1678632250620, 22339759369142, 296283345006762, 3983775288283852, 53436418787302376, 722470660610366682, 9751630939930532900 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A236911

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A114908 A102622 A280485 * A184611 A279042 A253697

Adjacent sequences:  A236903 A236904 A236905 * A236907 A236908 A236909

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 01 2014

STATUS

approved

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Last modified May 17 10:16 EDT 2022. Contains 353745 sequences. (Running on oeis4.)