A249321 Number of length 2+6 0..n arrays with no seven consecutive terms having six times any element equal to the sum of the remaining six

250, 4586, 51200, 305908, 1340288, 4669434, 13824950, 35964168, 84578488, 183245396, 371080198, 709972294, 1294191056, 2263233604, 3816492092, 6233476126, 9897561770, 15324707952, 23198080804, 34408755572, 50105942566

Offset

1,1

Comments

Row 2 of A249319

Links

R. H. Hardin, Table of n, a(n) for n = 1..31

Example

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

Crossrefs

Sequence in context: A234491 A249199 A249214 * A109121 A253005 A267972

Adjacent sequences: A249318 A249319 A249320 * A249322 A249323 A249324

Keyword

nonn

Author

R. H. Hardin, Oct 25 2014

Status

approved