A249006 Number of length 5+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

416, 6872, 91888, 706704, 4149708, 16909524, 61034658, 179220600, 484680810, 1179584718, 2691862296, 5660060962, 11419487998, 21680491596, 39877845854, 70202009284, 120203803140, 198769546216, 321758154748, 506644858160

Offset

1,1

Comments

Row 5 of A249001

Links

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

Example

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

Crossrefs

Sequence in context: A172779 A056068 A224602 * A249471 A246897 A223422

Adjacent sequences: A249003 A249004 A249005 * A249007 A249008 A249009

Keyword

nonn

Author

R. H. Hardin, Oct 18 2014

Status

approved