A238030 Number of (4+2)X(n+2) 0..1 arrays with the (lower) medians of each row unequal to its neighbors and each column equal to its neighbors

1820, 10362, 2176212, 11523584, 2708828768, 16591451786, 3418758855092, 23361620384256, 4350234790574400, 32153414354169192, 5569519078013287152, 43688532906706219824, 7166718834513098568960, 58940198578609172106570

Offset

1,1

Comments

Row 4 of A238026

Links

Table of n, a(n) for n=1..14.

Example

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

Crossrefs

Sequence in context: A326236 A156636 A234660 * A233719 A174770 A218104

Adjacent sequences: A238027 A238028 A238029 * A238031 A238032 A238033

Keyword

nonn

Author

R. H. Hardin, Feb 17 2014

Status

approved