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A236870 Number of (n+1)X(3+1) 0..2 arrays with the maximum plus the upper median minus the lower median of every 2X2 subblock equal 1
1069, 8117, 61750, 499947, 4012441, 32940090, 268846043, 2216853503, 18216556210, 150477516769, 1240690559877, 10259513722704, 84762104506229, 701528936685551, 5804293594811230, 48079083329705563, 398255771368619943 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A236875

LINKS

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

R. H. Hardin, Empirical recurrence of order 96

FORMULA

Empirical recurrence of order 96 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A095673 A252569 A020386 * A345904 A252256 A345525

Adjacent sequences:  A236867 A236868 A236869 * A236871 A236872 A236873

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 01 2014

STATUS

approved

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Last modified January 28 03:20 EST 2022. Contains 350654 sequences. (Running on oeis4.)