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A236982 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 equal 1
3000, 16212, 78976, 556322, 3448154, 26255552, 180781130, 1407433782, 10159143566, 79598995100, 588021453966, 4616820166256, 34554095952112, 271556460785234, 2049996681789834, 16121976104986232, 122498519844604318 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A236987

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A119892 A158861 A329169 * A202097 A229782 A269885

Adjacent sequences:  A236979 A236980 A236981 * A236983 A236984 A236985

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 02 2014

STATUS

approved

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Last modified February 21 02:02 EST 2020. Contains 332086 sequences. (Running on oeis4.)