A200710 Number of n X 4 0..7 arrays with every row and column running average nondecreasing rightwards and downwards.
638, 95567, 12904303, 1630978608, 195675787426, 22525604271509, 2512851095363929, 273566206900264111, 29225435372492971841, 3075465941063432826683, 319691253286956006425052
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..0..0..0....0..0..0..0....0..0..1..1....0..0..0..1....0..0..1..1 ..0..4..2..3....1..1..3..3....0..0..1..1....0..2..1..1....0..0..3..2 ..0..3..4..3....1..3..3..5....5..6..6..7....2..2..2..5....1..3..2..4
Crossrefs
Cf. A200713.
Comments