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!)
 A209950 Half the number of (n+1)X8 0..2 arrays with every 2X2 subblock having at most one duplicate clockwise edge difference 1
 6466176, 13183187396, 26744766723116, 54342179402121844, 110373178905015566530, 224204660538155238268018, 455417252425855582254656088, 925080790192116284005812399746 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A209951 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=4 ..2..0..1..2..0..2..1..0....2..2..1..2..2..2..1..0....2..2..2..2..1..0..2..0 ..2..1..1..1..2..2..1..2....0..1..1..1..0..1..1..0....1..2..0..1..1..2..2..1 ..0..2..2..2..0..0..2..2....2..2..0..0..0..1..0..2....0..2..1..1..2..0..2..2 ..2..1..1..2..0..2..2..0....1..1..1..2..0..2..2..1....1..0..2..1..1..0..2..1 ..2..2..0..2..2..1..2..1....1..2..0..2..1..1..1..1....0..2..1..1..0..0..2..1 CROSSREFS Sequence in context: A254456 A254090 A254097 * A288074 A157787 A115615 Adjacent sequences: A209947 A209948 A209949 * A209951 A209952 A209953 KEYWORD nonn AUTHOR R. H. Hardin Mar 16 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 December 5 10:40 EST 2023. Contains 367589 sequences. (Running on oeis4.)