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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
1
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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 03 2014
STATUS
approved