The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A232418 Number of (4+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal, diagonal or antidiagonal neighbor 1
 3635, 890283, 107913855, 16776955943, 2832909399671, 467364164103927, 76546444859852733, 12560477344372419185, 2062688244987841370793, 338674483333185405086591, 55602676837277868877030495 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 4 of A232414 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=1 ..1..1....2..2....0..0....0..0....2..1....2..2....0..0....1..2....0..0....0..0 ..2..2....2..2....2..0....1..2....1..2....2..2....1..2....2..1....0..1....1..0 ..2..2....2..1....1..2....2..1....2..0....1..0....2..1....0..0....1..2....0..1 ..1..1....1..2....0..2....1..0....0..1....0..1....0..0....2..2....2..1....2..2 ..2..2....2..2....2..0....0..1....2..2....0..0....2..2....1..1....1..2....0..0 CROSSREFS Sequence in context: A341264 A287219 A232120 * A206844 A206836 A206898 Adjacent sequences:  A232415 A232416 A232417 * A232419 A232420 A232421 KEYWORD nonn AUTHOR R. H. Hardin, Nov 23 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 January 24 17:28 EST 2022. Contains 350565 sequences. (Running on oeis4.)