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

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 60th year, we have over 367,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A232571 Number of (n+1) X (n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally, vertically or antidiagonally. 0
 16, 1064, 767942, 4107586864, 164594058779448, 50532651470537361772, 116497839389906889442230276 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A232579. LINKS Table of n, a(n) for n=1..7. EXAMPLE Some solutions for n=2 ..0..0..2....0..1..2....0..1..0....2..0..1....2..2..2....2..1..2....0..1..0 ..1..2..1....1..2..0....1..2..2....1..2..1....1..1..0....1..0..0....2..0..1 ..2..1..0....2..1..0....2..0..1....2..0..2....0..1..2....0..2..1....1..1..2 CROSSREFS Cf. A232579. Sequence in context: A029701 A281984 A266066 * A203096 A210822 A265622 Adjacent sequences: A232568 A232569 A232570 * A232572 A232573 A232574 KEYWORD nonn AUTHOR R. H. Hardin, Nov 26 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 2 20:14 EST 2023. Contains 367526 sequences. (Running on oeis4.)