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A231399
Number of (3+1)X(n+1) 0..2 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order
1
7, 15, 100, 311, 1706, 7844, 35696, 184692, 873979, 4399412, 22162876, 110261498, 564140421, 2850848402, 14542997263, 74409026027, 380043653506, 1950717998012, 10003505335070, 51373261673575, 264098740804503, 1357567141208027
OFFSET
1,1
COMMENTS
Row 3 of A231396
FORMULA
Empirical recurrence of order 83 (see link above)
EXAMPLE
Some solutions for n=4
..0..0..0..0..0....0..0..0..1..1....0..0..0..1..1....0..1..0..1..0
..0..0..0..1..1....0..0..0..0..1....0..0..0..1..1....1..0..1..0..1
..2..2..1..1..1....0..0..0..1..0....0..0..0..1..1....0..1..0..1..1
..2..2..2..1..1....1..1..1..0..1....0..0..0..0..1....1..0..1..1..1
CROSSREFS
Sequence in context: A343279 A041413 A144536 * A231466 A032004 A032018
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 08 2013
STATUS
approved