A265587 Number of nX4 0..n*4-1 arrays with upper left zero and lower right n*4-1 and each element differing from its horizontal and antidiagonal neighbors by a power of two.

2, 1354, 927797, 505822314, 807767184602, 938564405271330, 1227457797882040471, 1414459627698083569657, 2816459153372415311863893, 4797378178335553600403126383, 9197263173294758529913861224297

Offset

1,1

Comments

Column 4 of A265590.

Links

R. H. Hardin, Table of n, a(n) for n = 1..94

Example

Some solutions for n=2
..0..4..0..1....0..4..3..7....0..1..2..3....0..4..6..2....0..4..6..2
..6..4..3..7....6..4..3..7....5..3..5..7....3..2..3..7....0..2..6..7

Crossrefs

Cf. A265590.

Sequence in context: A020526 A247821 A202866 * A244614 A094477 A350806

Adjacent sequences: A265584 A265585 A265586 * A265588 A265589 A265590

Keyword

nonn

Author

R. H. Hardin, Dec 10 2015

Status

approved