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A265472 Number of 7Xn 0..7+n-2 arrays with upper left zero and lower right 7+n-2 and each element differing from its horizontal and antidiagonal neighbors by one or two. 0
16807, 448920, 226627855, 90139418667, 40379152013237, 15984824483462062, 6109458550119472926, 2389935645198640348518, 930872824490636727708065, 338013705923361717540139746 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 7 of A265466.
LINKS
EXAMPLE
Some solutions for n=1
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
..5....0....0....1....2....2....2....6....3....5....1....5....1....6....0....0
..3....3....5....2....4....6....6....2....1....5....4....5....4....4....0....6
..4....0....5....6....5....4....3....4....5....5....5....0....5....5....0....4
..5....4....4....6....2....0....3....6....5....1....1....4....2....2....6....4
..6....1....0....0....3....5....0....2....0....6....0....6....5....5....2....1
..6....6....6....6....6....6....6....6....6....6....6....6....6....6....6....6
CROSSREFS
Cf. A265466.
Sequence in context: A208630 A067493 A016925 * A016985 A017153 A265479
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 09 2015
STATUS
approved

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Last modified July 19 05:20 EDT 2024. Contains 374388 sequences. (Running on oeis4.)