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A240281
Number of n X 4 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.
1
4, 76, 570, 3457, 33183, 218658, 1851080, 15760838, 110599613, 945852472, 7409236730, 55988117579, 467427537182, 3584402597875, 28182066532013, 228525081390122, 1759513489969607, 14047642078491638, 111675119083235178
OFFSET
1,1
COMMENTS
Column 4 of A240284.
LINKS
EXAMPLE
Some solutions for n=4
..3..1..3..1....3..3..1..1....3..1..3..3....3..1..3..1....3..1..3..1
..2..0..2..0....2..2..2..2....2..0..2..2....2..0..0..0....3..2..0..0
..2..0..0..2....2..0..2..2....2..0..0..2....2..0..0..0....2..0..2..2
..2..1..1..2....2..0..0..0....2..0..0..0....2..0..0..2....3..3..2..0
CROSSREFS
Cf. A240284.
Sequence in context: A094160 A045996 A190395 * A114453 A093184 A214814
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 03 2014
STATUS
approved