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A265623
Number of 5Xn 0..5*n-1 arrays with upper left zero and lower right 5*n-1 and each element differing from its horizontal and diagonal neighbors by a power of two.
0
125, 86800, 147336019, 283374980138, 1819521260530360, 272537666067980991, 2836220162505763363250, 2343924370920894151804111, 23094563458334697286346784805
OFFSET
1,1
COMMENTS
Row 5 of A265619.
EXAMPLE
Some solutions for n=2
..0..4....0..8....0..1....0..4....0..1....0..1....0..1....0..4....0..2....0..2
..7..8....3..2....3..4....2..1....6..2....7..8....6..8....0..1....8..4....4..2
..9..5....8..4....8..4....5..6....0..2....7..3....8..7....7..8....5..6....6..8
..7..8....8..0....5..4....8..6....5..4....7..9....8..4....5..3....5..3....8..4
..8..9....7..9....1..9....7..9....1..9....5..9....5..9....7..9....1..9....8..9
CROSSREFS
Cf. A265619.
Sequence in context: A222277 A013783 A030697 * A050640 A161354 A318258
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 10 2015
STATUS
approved