login
A265585
Number of nX2 0..n*2-1 arrays with upper left zero and lower right n*2-1 and each element differing from its horizontal and antidiagonal neighbors by a power of two.
1
1, 2, 79, 2194, 142675, 7604426, 451816635, 25239520503, 3036006671645, 285945150234342, 28992125588332051, 2716076278306796693, 290648033962717209508, 28977699859149135616061, 2924647093592211787193603
OFFSET
1,2
COMMENTS
Column 2 of A265590.
LINKS
EXAMPLE
Some solutions for n=4
..0..2....0..1....0..2....0..4....0..4....0..1....0..4....0..2....0..2....0..1
..1..5....3..5....0..4....5..4....5..4....5..6....0..1....6..4....1..5....0..1
..3..7....7..5....2..3....3..7....6..4....4..2....5..6....3..4....4..2....2..4
..6..7....3..7....5..7....5..7....5..7....3..7....5..7....5..7....3..7....6..7
CROSSREFS
Cf. A265590.
Sequence in context: A166052 A045484 A113152 * A060051 A100421 A319438
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 10 2015
STATUS
approved