A248993 Number of length 6+4 0..n arrays with every five consecutive terms having two times the sum of some three elements equal to three times the sum of the remaining two.

2, 53, 204, 585, 3606, 18737, 51166, 118685, 214530, 452471, 819664, 1457951, 2322068, 3606075, 5552828, 8435185, 12070626, 16889399, 22604370, 30828023, 40644920, 53118537, 67488086, 85033849, 106229450, 132318767, 161530092

Offset

1,1

Comments

Row 6 of A248987

Links

R. H. Hardin, Table of n, a(n) for n = 1..80

Example

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

Crossrefs

Sequence in context: A248990 A248991 A248992 * A248994 A212242 A123005

Adjacent sequences: A248990 A248991 A248992 * A248994 A248995 A248996

Keyword

nonn

Author

R. H. Hardin, Oct 18 2014

Status

approved