A249322 Number of length 3+6 0..n arrays with no seven consecutive terms having six times any element equal to the sum of the remaining six

496, 11874, 183516, 1364252, 7224220, 29549686, 100848830, 297057784, 780670240, 1869743270, 4148784286, 8633208912, 17007503342, 31972857250, 57680151678, 100361401104, 169131251580, 277022732602, 442303120640, 690123299948

Offset

1,1

Comments

Row 3 of A249319

Links

R. H. Hardin, Table of n, a(n) for n = 1..21

Example

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

Crossrefs

Sequence in context: A303623 A249200 A249215 * A110847 A160472 A028512

Adjacent sequences: A249319 A249320 A249321 * A249323 A249324 A249325

Keyword

nonn

Author

R. H. Hardin, Oct 25 2014

Status

approved