This site is supported by donations to The OEIS Foundation.

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A218758 Unmatched value maps: number of n X n binary arrays indicating the locations of corresponding elements not equal to any horizontal or vertical neighbor in a random 0..1 n X n array 0
 1, 6, 90, 2942, 280850, 70915451, 48186998294, 87678602579068 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A218765 LINKS EXAMPLE Some solutions for n=3 ..1..0..0....1..1..0....1..0..0....0..0..1....1..1..0....1..1..1....0..0..1 ..1..1..0....1..0..0....0..0..0....0..1..1....0..0..0....1..0..1....0..0..1 ..1..0..0....0..0..0....0..1..0....0..0..1....0..0..1....0..0..0....0..1..1 CROSSREFS Sequence in context: A000680 A013297 A232979 * A219304 A265088 A077370 Adjacent sequences:  A218755 A218756 A218757 * A218759 A218760 A218761 KEYWORD nonn AUTHOR R. H. Hardin Nov 05 2012 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.

Last modified January 19 04:03 EST 2019. Contains 319299 sequences. (Running on oeis4.)