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A231259 Number of (n+1)X(4+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..2 introduced in row major order 1
7, 83, 1253, 19503, 302121, 4670875, 72212345, 1116538567, 17264116873, 266940042371, 4127456101305, 63819175744751, 986779131942921, 15257688013347083, 235916058283574201, 3647760162012484183 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A231263
LINKS
FORMULA
Empirical: a(n) = 31*a(n-1) -364*a(n-2) +2570*a(n-3) -12609*a(n-4) +44731*a(n-5) -117554*a(n-6) +227260*a(n-7) -319008*a(n-8) +314816*a(n-9) -208992*a(n-10) +83456*a(n-11) -14336*a(n-12)
EXAMPLE
Some solutions for n=3
..0..0..0..1..1....0..0..0..0..0....0..0..1..1..1....0..0..1..1..1
..0..0..1..2..2....0..0..0..1..1....0..1..0..0..0....0..1..0..0..2
..1..1..2..1..1....1..1..1..2..2....1..0..2..2..2....1..0..0..2..0
..2..2..1..1..1....2..2..2..2..2....0..2..2..2..2....2..2..2..0..0
CROSSREFS
Sequence in context: A099668 A348303 A240170 * A187649 A368853 A316377
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 06 2013
STATUS
approved

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Last modified March 28 04:58 EDT 2024. Contains 371235 sequences. (Running on oeis4.)