The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A220317 Equals two maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to exactly two of their king-move neighbors in a random 0..2 nX3 array 0
 2, 24, 353, 3167, 28215, 237144, 1944692, 15735116, 126513306, 1014237718, 8120891182, 64989221681, 519982144806, 4160063431147 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A220319 LINKS Table of n, a(n) for n=1..14. EXAMPLE Some solutions for n=3 ..0..1..0....0..0..0....1..1..1....1..0..0....1..1..0....0..1..1....0..0..0 ..0..1..1....1..1..1....0..1..1....0..0..0....1..1..0....1..0..0....0..0..1 ..0..0..1....0..1..0....0..0..0....1..0..1....1..0..1....0..1..0....1..0..0 CROSSREFS Sequence in context: A333715 A081065 A043699 * A220340 A366003 A134805 Adjacent sequences: A220314 A220315 A220316 * A220318 A220319 A220320 KEYWORD nonn AUTHOR R. H. Hardin Dec 10 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 19 00:22 EDT 2024. Contains 373492 sequences. (Running on oeis4.)