A249088 Number of length 3+5 0..n arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four

22, 243, 2844, 15493, 55318, 195519, 525960, 1201225, 2645038, 5175815, 9258348, 16218441, 26602442, 41385791, 63581316, 93693521, 133477418, 188493299, 259075080, 347572337, 463553770, 606221499, 779323728, 997197941, 1257681970

Offset

1,1

Comments

Row 3 of A249085

Links

R. H. Hardin, Table of n, a(n) for n = 1..52

Example

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

Crossrefs

Sequence in context: A300624 A249087 A348707 * A249089 A249090 A249091

Adjacent sequences: A249085 A249086 A249087 * A249089 A249090 A249091

Keyword

nonn

Author

R. H. Hardin, Oct 20 2014

Status

approved