A240292 Number of nX4 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4

16, 90, 1322, 12164, 200864, 1867678, 31042576, 289075166, 4812019390, 44835430372, 746652702602, 6957950651414, 115885487812848, 1079973979330894, 17987700634273696, 167635681543897926, 2792113987069613616

Offset

1,1

Comments

Column 4 of A240295

Links

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

Example

Some solutions for n=4
..1..3..3..1....1..3..3..1....1..3..1..0....3..1..1..0....3..1..3..1
..1..0..0..2....1..0..2..0....1..2..0..0....3..0..0..0....3..2..2..2
..1..0..0..2....3..0..0..1....3..2..0..3....3..2..2..0....1..0..0..0
..3..2..2..0....1..3..1..2....1..3..2..3....1..0..2..0....3..0..0..2

Crossrefs

Sequence in context: A055920 A055856 A195591 * A050406 A047674 A153029

Adjacent sequences: A240289 A240290 A240291 * A240293 A240294 A240295

Keyword

nonn

Author

R. H. Hardin, Apr 03 2014

Status

approved