A237900 Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the upper median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

1768, 21410, 265306, 3351086, 42195634, 529992314, 6659762642, 83778337524, 1053822365410, 13250382610758, 166607568124526, 2095232432433472, 26349301348673676, 331342826243559342, 4166639480874835776

Offset

1,1

Comments

Column 2 of A237904

Links

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

Example

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

Crossrefs

Sequence in context: A031540 A135795 A206201 * A221118 A155023 A176478

Adjacent sequences: A237897 A237898 A237899 * A237901 A237902 A237903

Keyword

nonn

Author

R. H. Hardin, Feb 15 2014

Status

approved