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A251807 Number of (7+1)X(n+1) 0..3 arrays with no 2X2 subblock having x11-x00 less than x10-x01 1
305991368, 310512400748, 114701510008550, 20552060379396424, 2134102396738819286, 144607697103715449366, 6950854990205965398511, 251944939127223553670932, 7212104449092454367810317 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 7 of A251801
LINKS
EXAMPLE
Some solutions for n=1
..0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0
..0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0
..0..0....0..0....0..0....0..0....0..0....0..0....0..2....0..2....0..0....0..2
..2..2....0..2....0..2....0..0....2..2....0..2....0..0....0..0....2..2....2..2
..2..2....0..2....0..2....1..3....1..3....2..3....0..1....3..3....1..1....2..3
..2..2....0..3....1..3....0..3....0..3....0..2....0..0....0..0....0..2....1..1
..3..3....1..2....1..1....1..2....0..2....2..0....0..1....0..3....3..1....0..2
..0..3....0..0....1..2....2..2....3..1....0..2....2..1....0..0....1..3....3..1
CROSSREFS
Sequence in context: A022219 A285433 A104965 * A184671 A034610 A015410
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 09 2014
STATUS
approved

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Last modified March 4 10:33 EST 2024. Contains 370528 sequences. (Running on oeis4.)