login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A265593 Number of 4Xn 0..4*n-1 arrays with upper left zero and lower right 4*n-1 and each element differing from its horizontal and antidiagonal neighbors by a power of two. 1
16, 2194, 1427680, 505822314, 376251416588, 206165131815361, 120144000694871253, 53974676359805778756, 39402755654545704759053, 23831291055520068619322648, 16191048290312545445105091467 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A265590.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..18

EXAMPLE

Some solutions for n=2

..0..1....0..1....0..2....0..1....0..4....0..1....0..4....0..4....0..4....0..1

..2..3....3..5....6..7....2..1....2..0....5..6....0..1....0..1....6..5....3..2

..5..1....3..2....5..4....5..4....4..6....5..4....2..1....3..4....4..5....3..5

..3..7....6..7....5..7....5..7....5..7....3..7....5..7....6..7....3..7....3..7

CROSSREFS

Cf. A265590.

Sequence in context: A121366 A101800 A208148 * A304399 A186857 A196884

Adjacent sequences:  A265590 A265591 A265592 * A265594 A265595 A265596

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 10 2015

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 28 11:08 EST 2020. Contains 332323 sequences. (Running on oeis4.)