The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A183483 T(n,k)=Number of nXk 0..2 arrays with every element equal to either the sum mod 3 of its vertical neighbors or the sum mod 3 of its horizontal neighbors 9
 1, 3, 3, 5, 15, 5, 7, 39, 39, 7, 13, 135, 117, 135, 13, 23, 495, 587, 587, 495, 23, 37, 1647, 2925, 4015, 2925, 1647, 37, 63, 5751, 12131, 40073, 40073, 12131, 5751, 63, 109, 20223, 58333, 270549, 706473, 270549, 58333, 20223, 109, 183, 70119, 270611 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts ...1......3.......5.........7..........13..........23..........37..........63 ...3.....15......39.......135.........495........1647........5751.......20223 ...5.....39.....117.......587........2925.......12131.......58333......270611 ...7....135.....587......4015.......40073......270549.....1942323....15984991 ..13....495....2925.....40073......706473.....7773025...107741253..1577932971 ..23...1647...12131....270549.....7773025...116198719..2519745049.56697667073 ..37...5751...58333...1942323...107741253..2519745049.84056287173 ..63..20223..270611..15984991..1577932971.56697667073 .109..70119.1220877.119888365.20728674493 .183.244863.5724163.894632985 LINKS R. H. Hardin, Table of n, a(n) for n = 1..97 EXAMPLE Some solutions for 5X4 ..2..2..0..0....0..0..2..2....1..1..0..0....0..0..0..0....1..2..1..2 ..0..0..0..0....2..0..1..1....0..0..0..0....1..2..1..2....1..1..0..2 ..2..0..1..0....2..0..2..2....2..0..0..0....1..1..1..2....0..0..0..0 ..2..0..1..0....0..0..0..0....2..0..1..1....2..2..0..0....1..0..1..2 ..0..0..0..0....0..0..2..2....0..0..0..0....2..2..2..0....1..0..1..2 CROSSREFS Column 1 is A003229 Sequence in context: A226921 A133190 A052898 * A218663 A095355 A336130 Adjacent sequences: A183480 A183481 A183482 * A183484 A183485 A183486 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 05 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified February 8 23:03 EST 2023. Contains 360153 sequences. (Running on oeis4.)