A231414 Number of (n+1)X(2+1) 0..2 arrays with no element equal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order.

71, 1032, 15125, 221445, 3245016, 47557773, 697029563, 10216062982, 149732672641, 2194570662617, 32164925750976, 471428170136401, 6909529986297263, 101270156563366358, 1484275287919713541

Offset: 1

Author

R. H. Hardin, Nov 08 2013

Keywords

• nonn

Comments

Column 2 of A231419

Examples

			Some solutions for n=3
..0..1..1....0..1..0....0..0..1....0..1..2....0..1..0....0..1..0....0..1..2
..0..2..0....2..0..2....1..1..1....2..0..0....0..2..1....2..2..0....0..0..1
..2..0..0....1..1..1....0..2..0....2..1..2....1..2..1....0..0..1....2..2..2
..2..1..2....0..0..1....1..0..1....1..2..0....0..1..2....2..1..2....1..0..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210

Formula

Empirical: a(n) = 17*a(n-1) -28*a(n-2) -119*a(n-3) +373*a(n-4) +134*a(n-5) -268*a(n-6) -200*a(n-7)