A238141 Number of (n+1)X(2+1) 0..3 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

1810, 22698, 292176, 3817216, 49554382, 642717388, 8350461834, 108497620520, 1408763005522, 18293990239076, 237617269565066, 3086156579656534, 40079416703850338, 520523252730903368, 6760388203460812474

Offset

1,1

Comments

Column 2 of A238145

Links

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

Example

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

Crossrefs

Sequence in context: A122477 A134155 A252808 * A058954 A205258 A255732

Adjacent sequences: A238138 A238139 A238140 * A238142 A238143 A238144

Keyword

nonn

Author

R. H. Hardin, Feb 18 2014

Status

approved