A237725 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 differing from its horizontal and vertical neighbors by exactly one

1510, 13496, 122940, 1145290, 10499035, 95855164, 880137130, 8127250116, 74629273042, 683964254956, 6286003833036, 57856832489276, 531534461181318, 4878726987367352, 44841216521683074, 412241976376016092

Offset

1,1

Comments

Column 3 of A237730

Links

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

R. H. Hardin, Empirical recurrence of order 88

Formula

Empirical recurrence of order 88 (see link above)

Example

Some solutions for n=3
..1..2..2..1....1..1..0..1....2..0..1..1....0..0..0..0....0..1..0..2
..1..1..0..1....2..2..1..1....2..0..2..1....0..1..1..0....2..0..1..0
..2..2..1..1....2..1..2..0....1..0..2..1....2..1..1..2....0..2..0..1
..2..2..0..0....2..1..1..2....2..1..0..1....2..1..2..0....2..1..1..1

Crossrefs

Sequence in context: A237319 A281569 A252553 * A200915 A298223 A060676

Adjacent sequences: A237722 A237723 A237724 * A237726 A237727 A237728

Keyword

nonn

Author

R. H. Hardin, Feb 12 2014

Status

approved