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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A186015 1/8192 the number of (n+2) X 7 0..3 arrays with no 3 X 3 subblock trace equal to any horizontal or vertical neighbor 3 X 3 subblock trace. 1
 294396948, 1574001377834, 8896022678225044, 50262815203472669902, 283178106619218127407323, 1595416034937751138022369826, 8989089860728323984726287971908, 50647264481612304867053099566842986 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A186019. LINKS R. H. Hardin, Table of n, a(n) for n = 1..26 EXAMPLE Some solutions for 4 X 7 ..2..0..2..2..1..0..2....2..0..2..0..1..0..3....2..0..2..3..1..0..3 ..0..0..0..0..1..2..1....0..0..0..0..0..1..3....0..0..0..0..2..2..1 ..0..0..0..0..0..2..0....0..0..0..0..0..1..1....0..0..0..0..0..2..0 ..0..0..0..1..0..2..1....0..0..0..1..0..2..0....0..0..0..1..0..2..0 CROSSREFS Cf. A186019. Sequence in context: A112452 A291459 A034640 * A183800 A289908 A182990 Adjacent sequences: A186012 A186013 A186014 * A186016 A186017 A186018 KEYWORD nonn AUTHOR R. H. Hardin, Feb 10 2011 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 March 31 16:08 EDT 2023. Contains 361668 sequences. (Running on oeis4.)