The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A205983 Number of (n+1)X6 0..2 arrays with every 2X3 or 3X2 subblock having exactly two clockwise edge increases 1
 60432, 140802, 408411, 1814784, 9653376, 50843904, 279003648, 1502833632, 7930959552, 43524639072, 234442046592, 1237229690112, 6789843695232, 36572959268352, 193007831657472, 1059215616456192, 5705381645862912 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A205986 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 156*a(n-3) for n>10 EXAMPLE Some solutions for n=4 ..2..1..0..1..0..2....2..2..2..0..2..0....2..0..1..2..0..0....2..0..1..2..0..0 ..0..1..1..2..0..0....2..1..0..0..1..2....0..0..1..1..2..0....0..0..1..1..2..0 ..1..2..1..1..2..0....1..0..0..1..2..2....1..1..2..1..1..0....1..1..2..1..1..2 ..1..1..2..1..1..2....0..0..1..2..2..1....2..1..1..2..1..1....2..1..1..2..1..1 ..2..1..1..0..1..2....0..1..2..2..0..2....0..2..1..1..2..0....0..2..1..1..0..0 CROSSREFS Sequence in context: A287047 A075671 A186556 * A218488 A257754 A234767 Adjacent sequences:  A205980 A205981 A205982 * A205984 A205985 A205986 KEYWORD nonn AUTHOR R. H. Hardin Feb 02 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified March 29 17:23 EDT 2020. Contains 333116 sequences. (Running on oeis4.)