A237673 Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the upper median plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

1564, 14244, 132572, 1346420, 13569422, 134401476, 1333046350, 13340078386, 133387449994, 1328426151742, 13234291152744, 132112050245452, 1318587054311498, 13147462329089532, 131102446354703274

Offset

1,1

Comments

Column 2 of A237677

Links

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

Example

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

Crossrefs

Sequence in context: A280354 A072394 A243528 * A246734 A237467 A035890

Adjacent sequences: A237670 A237671 A237672 * A237674 A237675 A237676

Keyword

nonn

Author

R. H. Hardin, Feb 11 2014

Status

approved