A249003 Number of length 2+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

58, 464, 2668, 10360, 32398, 82348, 189660, 387900, 744378, 1335780, 2289960, 3737824, 5914730, 9025016, 13447116, 19506256, 27749742, 38646260, 53006324, 71470164, 95143346, 124907012, 162219976, 208226592, 264893594, 333635648

Offset

1,1

Comments

Row 2 of A249001

Links

R. H. Hardin, Table of n, a(n) for n = 1..95

Example

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

Crossrefs

Sequence in context: A235511 A255684 A156639 * A249468 A232378 A246894

Adjacent sequences: A249000 A249001 A249002 * A249004 A249005 A249006

Keyword

nonn

Author

R. H. Hardin, Oct 18 2014

Status

approved