This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A215740 Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the odd squares of an nX3 array with new integer colors introduced in row major order 1
 1, 1, 1, 8, 22, 364, 1474, 40612, 211784, 8520924, 53617792, 2916070032, 21317896720, 1489852279864, 12342388117560, 1069484429786480, 9864419605055184, 1031932540617115200, 10458239434388496304 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 COMMENTS Column 3 of A215745 LINKS R. H. Hardin, Table of n, a(n) for n = 1..27 EXAMPLE Some solutions for n=4 ..x..0..x....x..0..x....x..0..x....x..0..x....x..0..x....x..0..x....x..0..x ..1..x..2....1..x..2....1..x..2....1..x..2....1..x..2....1..x..2....1..x..2 ..x..3..x....x..3..x....x..3..x....x..3..x....x..3..x....x..3..x....x..3..x ..2..x..0....2..x..1....4..x..0....4..x..5....4..x..1....0..x..1....0..x..4 CROSSREFS Sequence in context: A217275 A183308 A117613 * A304177 A109271 A029755 Adjacent sequences:  A215737 A215738 A215739 * A215741 A215742 A215743 KEYWORD nonn AUTHOR R. H. Hardin Aug 22 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified November 13 19:25 EST 2018. Contains 317149 sequences. (Running on oeis4.)