The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A282481 T(n,k)=Number of nXk 0..1 arrays with no 1 equal to more than three of its king-move neighbors, with the exception of exactly two elements. 7
 0, 0, 0, 0, 0, 0, 0, 5, 5, 0, 0, 18, 40, 18, 0, 0, 89, 483, 483, 89, 0, 0, 408, 4328, 8208, 4328, 408, 0, 0, 1754, 36425, 127603, 127603, 36425, 1754, 0, 0, 7528, 297210, 1905024, 3648818, 1905024, 297210, 7528, 0, 0, 31798, 2327123, 27253740, 97464193 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,8 COMMENTS Table starts .0.....0........0..........0.............0...............0..................0 .0.....0........5.........18............89.............408...............1754 .0.....5.......40........483..........4328...........36425.............297210 .0....18......483.......8208........127603.........1905024...........27253740 .0....89.....4328.....127603.......3648818........97464193.........2496089344 .0...408....36425....1905024......97464193......4672345728.......213243466320 .0..1754...297210...27253740....2496089344....213243466320.....17282935743792 .0..7528..2327123..376888612...61848450513...9416926688594...1356909122451366 .0.31798.17768964.5103365490.1496483484838.405614428281622.103825223863665136 LINKS R. H. Hardin, Table of n, a(n) for n = 1..179 FORMULA Empirical for column k: k=1: a(n) = a(n-1) k=2: [order 18] k=3: [order 27] k=4: [order 51] EXAMPLE Some solutions for n=4 k=4 ..0..1..1..1. .1..0..0..1. .0..1..1..0. .1..0..1..0. .1..0..1..1 ..1..1..0..0. .1..0..0..1. .0..0..0..1. .0..1..0..0. .1..1..0..0 ..1..0..1..1. .1..1..0..0. .1..1..0..0. .0..1..1..1. .0..1..1..0 ..1..1..0..0. .1..1..0..0. .1..1..1..0. .0..1..0..1. .1..1..0..0 CROSSREFS Sequence in context: A285288 A356116 A281165 * A286979 A030047 A176184 Adjacent sequences: A282478 A282479 A282480 * A282482 A282483 A282484 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Feb 16 2017 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 June 16 16:46 EDT 2024. Contains 373432 sequences. (Running on oeis4.)