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A241057
Number of 4Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4
1
6, 6, 6, 64, 163, 280, 1423, 4167, 13389, 46605, 146031, 518568, 1559943, 5448063, 18661041, 57879161, 201222626, 664132824, 2176050370, 7339658200, 24139869513, 80786317859, 267972379590, 888853920796, 2971967179489, 9838548423147
OFFSET
1,1
COMMENTS
Row 4 of A241054
LINKS
EXAMPLE
Some solutions for n=4
..3..3..2..2....3..2..3..3....3..3..2..2....3..3..2..2....3..3..2..3
..2..1..1..0....2..1..1..0....2..1..1..3....2..1..1..3....2..1..1..0
..3..3..2..3....2..0..2..0....2..1..1..2....3..3..1..2....3..3..2..2
..2..2..2..0....2..1..3..0....2..0..2..0....2..0..2..0....2..2..0..0
CROSSREFS
Sequence in context: A092281 A082796 A078245 * A375657 A375640 A247253
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 15 2014
STATUS
approved