A248999 Number of length n+4 0..6 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

13990, 82348, 485580, 2865126, 16909524, 99817384, 589354152, 3479916010, 20548067494, 121333048614, 716461085260, 4230692840640, 24982283288368, 147520857046232, 871114227605828, 5143954672207112, 30375223032465730

Offset

1,1

Comments

Column 6 of A249001

Links

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

Example

Some solutions for n=2
..5....1....0....5....3....6....1....6....4....5....4....6....6....0....5....5
..3....6....6....3....5....5....5....4....0....4....6....3....5....3....3....0
..1....6....4....6....3....1....4....3....1....5....5....1....1....5....0....2
..4....0....5....1....3....3....5....0....1....0....5....2....0....1....2....0
..1....5....6....2....5....3....3....3....5....4....1....2....5....2....5....3
..3....0....3....1....6....0....1....6....0....3....4....1....0....2....3....4

Crossrefs

Sequence in context: A066939 A215150 A215944 * A251612 A252290 A229699

Adjacent sequences: A248996 A248997 A248998 * A249000 A249001 A249002

Keyword

nonn

Author

R. H. Hardin, Oct 18 2014

Status

approved