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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A232281 T(n,k)=Number of nXk 0..2 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors 12
 3, 3, 9, 9, 35, 27, 22, 199, 104, 81, 51, 1066, 1672, 341, 243, 121, 6019, 23055, 18117, 1189, 729, 292, 32301, 293426, 604133, 184115, 4040, 2187, 704, 174400, 3476318, 17145989, 14477600, 1774344, 13560, 6561, 1691, 944500, 43029161, 450287974 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .....3......3..........9............22...............51.................121 .....9.....35........199..........1066.............6019...............32301 ....27....104.......1672.........23055...........293426.............3476318 ....81....341......18117........604133.........17145989...........450287974 ...243...1189.....184115......14477600........906702319.........52334662011 ...729...4040....1774344.....340593196......47260154104.......6001447087200 ..2187..13560...17764558....8229274953....2527067273698.....706877889324298 ..6561..45803..178471267..198816273957..135096346014359...83179007080796381 .19683.155131.1771400531.4771778176334.7180729990183315.9733054114073214077 LINKS R. H. Hardin, Table of n, a(n) for n = 1..127 FORMULA Empirical for column k: k=1: a(n) = 3*a(n-1) k=2: [order 11] for n>12 k=3: [order 35] for n>36 Empirical for row n: n=1: a(n) = 3*a(n-1) -3*a(n-2) +4*a(n-3) -a(n-4) +a(n-5) for n>6 n=2: [order 10] n=3: [order 52] for n>53 EXAMPLE Some solutions for n=3 k=4 ..0..0..0..1....2..0..0..0....0..2..0..0....2..2..1..1....0..1..0..2 ..1..0..1..2....2..0..0..0....0..0..0..0....1..1..2..2....2..0..0..0 ..0..0..0..0....0..2..1..2....0..0..0..0....1..1..1..1....0..2..0..0 CROSSREFS Column 1 is A000244 Column 2 is A231645 Row 1 is A202882 for n>1 Sequence in context: A373322 A100066 A170832 * A223743 A117783 A121445 Adjacent sequences: A232278 A232279 A232280 * A232282 A232283 A232284 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Nov 22 2013 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 July 14 05:06 EDT 2024. Contains 374291 sequences. (Running on oeis4.)