login
A240006
Number of 7Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4
0
368, 22592, 685898, 18392485, 429788876, 9314138750, 182333502325, 3306340714115, 55641031584148, 875242526758630
OFFSET
1,1
COMMENTS
Row 7 of A240000
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....0..0..0....0..0..3....0..0..0....0..0..0....0..0..0
..0..3..3....3..3..0....3..3..0....0..0..0....0..0..0....3..3..0....0..0..3
..0..3..3....2..2..3....3..3..1....0..0..2....3..3..0....0..2..1....0..3..3
..0..2..1....0..2..0....3..1..2....0..0..2....2..2..3....2..0..0....3..3..2
..0..0..2....0..0..3....0..2..0....0..0..0....2..2..0....2..0..2....3..2..3
..0..0..2....0..3..3....2..2..3....3..3..0....0..2..0....2..1..2....3..1..0
..0..3..3....0..3..1....0..2..1....0..3..3....2..2..2....0..2..2....0..2..0
CROSSREFS
Sequence in context: A252222 A173055 A318938 * A097501 A239411 A239339
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 30 2014
STATUS
approved