A249259 Number of length 4+6 0..n arrays with every seven consecutive terms having five times the sum of some two elements equal to two times the sum of the remaining five

2, 395, 2048, 10673, 37442, 108563, 473458, 1549383, 4115924, 9724073, 20072810, 39126419, 69504286, 135735757, 240442240, 411187489, 656842376, 1023699903, 1518990784, 2216442121, 3279686920, 4777949885, 6709372256, 9308235433

Offset

1,1

Comments

Row 4 of A249255

Links

R. H. Hardin, Table of n, a(n) for n = 1..26

Example

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

Crossrefs

Sequence in context: A249256 A249257 A249258 * A249260 A249261 A249262

Adjacent sequences: A249256 A249257 A249258 * A249260 A249261 A249262

Keyword

nonn

Author

R. H. Hardin, Oct 23 2014

Status

approved