This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A204299 Number of nX6 0..3 arrays with every element neighboring horizontally or vertically both a 0 and a 1, and 2 introduced before 3 in row major order 1
 0, 212, 19540, 1972288, 277234340, 47309058644, 5589659640640, 870640738340900, 123996249589648356, 17750283049298827840, 2576653369311868344772, 370733913903692365171892, 53509487787359717704828880 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Column 6 of A204301 LINKS R. H. Hardin, Table of n, a(n) for n = 1..30 EXAMPLE Some solutions for n=3 ..2..1..1..0..0..3....0..0..1..1..1..2....0..1..2..0..0..1....0..1..0..2..1..0 ..0..0..1..2..1..1....1..1..2..0..0..0....0..1..1..1..0..1....0..1..0..2..1..0 ..1..1..1..0..0..0....3..0..0..1..1..1....2..1..0..0..0..1....2..1..0..0..1..1 CROSSREFS Sequence in context: A200433 A222950 A082828 * A083962 A007942 A210257 Adjacent sequences:  A204296 A204297 A204298 * A204300 A204301 A204302 KEYWORD nonn AUTHOR R. H. Hardin Jan 14 2012 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .