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A241250
Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4
1
4, 4, 13, 47, 174, 606, 2111, 6647, 21752, 70595, 229009, 744946, 2418238, 7843143, 25449403, 82556576, 267788667, 868709237, 2817909735, 9140802924, 29651305001, 96183371668, 311999852696, 1012067748968, 3282944840574, 10649213948821
OFFSET
1,1
COMMENTS
Column 3 of A241255
LINKS
EXAMPLE
Some solutions for n=4
..3..3..2....2..2..3....3..3..2....3..3..2....2..2..3....3..3..2....3..3..2
..2..1..3....3..1..2....2..1..3....2..1..3....3..1..2....2..1..3....2..1..1
..2..2..3....2..1..3....2..2..3....2..1..3....2..1..3....2..1..3....2..2..2
..0..0..2....2..2..2....2..1..3....2..0..1....2..2..3....2..0..2....2..1..2
CROSSREFS
Sequence in context: A019081 A219454 A059443 * A097335 A255297 A339319
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 18 2014
STATUS
approved