A249090 Number of length 5+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, 5964, 47645, 211034, 1054347, 3535850, 9493535, 25153046, 56497393, 112531790, 220767937, 396410714, 663326409, 1099809388, 1725034343, 2589206092, 3857810135, 5551077540, 7742041245, 10743080836, 14544778639

Offset

1,1

Comments

Row 5 of A249085

Links

R. H. Hardin, Table of n, a(n) for n = 1..31

Example

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

Crossrefs

Sequence in context: A348707 A249088 A249089 * A249091 A041930 A249092

Adjacent sequences: A249087 A249088 A249089 * A249091 A249092 A249093

Keyword

nonn

Author

R. H. Hardin, Oct 20 2014

Status

approved