This site is supported by donations to The OEIS Foundation.

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A197646 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,2,0,2 for x=0,1,2,3,4 1
 1, 185, 9007, 251972, 7296769, 243912221, 8248011722, 265348341492, 8500602391949, 277030071745596, 9038063797683276, 293030900435918084, 9496009802624436871, 308447946938205252275, 10021951587844761774616 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Every 0 is next to 0 4's, every 1 is next to 1 2's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 2's Column 6 of A197648 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions containing all values 0 to 4 for n=4 ..0..0..2..2..2..0....0..0..0..1..1..0....2..2..2..0..0..0....0..1..0..1..0..0 ..0..1..2..4..2..0....0..0..2..2..2..0....2..4..2..3..0..3....1..2..2..2..3..0 ..3..0..2..2..2..1....0..3..2..4..2..1....2..2..2..0..0..0....0..2..4..2..0..3 ..0..0..0..1..1..0....0..0..2..2..2..0....1..0..0..0..3..0....1..2..2..2..0..0 CROSSREFS Sequence in context: A207076 A189181 A203392 * A015273 A214605 A186398 Adjacent sequences:  A197643 A197644 A197645 * A197647 A197648 A197649 KEYWORD nonn AUTHOR R. H. Hardin Oct 16 2011 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 January 17 05:26 EST 2019. Contains 319207 sequences. (Running on oeis4.)