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!)
 A205942 Number of (n+1) X 7 0..3 arrays with no 2 X 2 subblock having the number of clockwise edge increases equal to the number of counterclockwise edge increases in its adjacent leftward or upward neighbors. 1
 4711264, 34647764, 519841120, 6909160028, 103395482496, 1498787263308, 22850275822056, 350243656458156, 5398960736044656, 84190508155837176, 1298216839771776032, 20181211947687559772, 312919261125294119584 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 6 of A205944. LINKS R. H. Hardin, Table of n, a(n) for n = 1..22 EXAMPLE Some solutions for n=4: ..1..2..2..1..0..1..2....0..2..0..3..3..2..0....2..0..0..2..0..3..0 ..3..2..2..2..1..1..3....0..2..1..0..2..2..1....2..2..1..3..3..3..1 ..0..3..2..2..1..1..0....0..3..2..0..0..3..2....1..3..2..2..3..3..2 ..0..0..3..3..2..2..1....1..0..2..2..1..0..2....0..1..2..3..0..0..3 ..0..0..3..3..2..2..0....2..0..0..3..2..0..0....0..0..3..0..0..0..2 CROSSREFS Cf. A205944. Sequence in context: A083605 A210333 A069340 * A271142 A258132 A083641 Adjacent sequences: A205939 A205940 A205941 * A205943 A205944 A205945 KEYWORD nonn AUTHOR R. H. Hardin, Feb 01 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 May 20 19:00 EDT 2024. Contains 372720 sequences. (Running on oeis4.)