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A237961 Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
6042, 64146, 645156, 7259122, 84562206, 940160466, 10256817488, 114442690994, 1289184763590, 14363355184818, 159182824702650, 1774324207171920, 19835441920244388, 221078397238990622, 2459909992151774668 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A237965

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A202895 A157652 A264949 * A175160 A184195 A269935

Adjacent sequences:  A237958 A237959 A237960 * A237962 A237963 A237964

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 16 2014

STATUS

approved

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Last modified May 26 19:20 EDT 2019. Contains 323597 sequences. (Running on oeis4.)