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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A232069 Number of (n+1)X(n+1) 0..1 arrays with every element equal to some horizontal, diagonal or antidiagonal neighbor, with top left element zero 0
 3, 87, 6624, 2265691, 3154769585, 16761785898550, 346245388962998639, 27933597031900237580649, 8787110268003730673863070121, 10774541106851322777417902818902431 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A232076 LINKS EXAMPLE Some solutions for n=3 ..0..0..0..0....0..1..1..1....0..0..0..1....0..0..1..1....0..0..0..0 ..1..1..0..1....1..0..1..1....0..1..1..0....1..1..0..1....0..0..0..0 ..0..0..1..0....0..0..0..0....1..0..1..1....1..1..0..0....1..0..0..0 ..0..0..1..1....1..1..1..1....0..1..1..1....0..0..1..0....1..1..1..0 CROSSREFS Sequence in context: A172494 A279131 A230670 * A172723 A331645 A037112 Adjacent sequences:  A232066 A232067 A232068 * A232070 A232071 A232072 KEYWORD nonn AUTHOR R. H. Hardin, Nov 17 2013 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 August 2 09:22 EDT 2021. Contains 346422 sequences. (Running on oeis4.)