A237572 Number of (n+1)X(4+1) 0..3 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

103264, 4146324, 173478980, 7415425124, 313460630304, 13253873415032, 561018557350096, 23744013911896432, 1004820307993854444, 42525851524551543744, 1799676836916461964332, 76161999586684517769192

Offset

1,1

Comments

Column 4 of A237574

Links

R. H. Hardin, Table of n, a(n) for n = 1..108

Example

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

Crossrefs

Sequence in context: A015330 A250704 A250941 * A255210 A147526 A269218

Adjacent sequences: A237569 A237570 A237571 * A237573 A237574 A237575

Keyword

nonn

Author

R. H. Hardin, Feb 09 2014

Status

approved