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A237948 Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the upper median plus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
8291, 102396, 1268436, 17612024, 235951750, 3242667656, 44334957288, 616683845628, 8455956865056, 116500230730864, 1604871798632138, 22234964614324948, 306090461372206604, 4218782034139271708 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A237951

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A031769 A280872 A329342 * A250991 A206192 A252155

Adjacent sequences: A237945 A237946 A237947 * A237949 A237950 A237951

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 16 2014

STATUS

approved

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Last modified February 4 07:13 EST 2023. Contains 360046 sequences. (Running on oeis4.)