A249008 Number of length 7+4 0..n arrays with no five consecutive terms having two times the sum of any three elements equal to three times the sum of the remaining two

1546, 41084, 973204, 11810564, 105819690, 589354152, 2869206494, 10716918348, 36428481062, 108634995458, 299997171280, 746679315998, 1771285007396, 3889902082248, 8233803171560, 16491148207236, 31949943270148

Offset

1,1

Comments

Row 7 of A249001

Links

R. H. Hardin, Table of n, a(n) for n = 1..65

Example

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

Crossrefs

Sequence in context: A234031 A038009 A362507 * A249473 A246899 A090209

Adjacent sequences: A249005 A249006 A249007 * A249009 A249010 A249011

Keyword

nonn

Author

R. H. Hardin, Oct 18 2014

Status

approved