A249084 Number of length n+5 0..7 arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four

78448, 202628, 525960, 1365188, 3535850, 9128450, 23480326, 61940694, 162995818, 427723930, 1118943674, 2917379528, 7579080652, 20132662668, 53324358248, 140801592674, 370556680666, 971794433086, 2539113787424, 6770428097170

Offset

1,1

Comments

Column 7 of A249085

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=1
..6....3....6....7....3....6....6....1....5....1....2....6....0....1....6....2
..0....1....0....6....1....3....5....3....2....5....2....5....0....7....7....7
..1....7....0....4....5....4....5....4....2....2....2....2....2....0....3....6
..1....2....0....5....6....1....2....0....7....5....6....5....0....3....6....0
..5....5....5....1....6....4....4....3....2....3....1....0....1....7....3....0
..5....6....7....1....0....6....2....1....6....5....5....3....0....6....2....3

Crossrefs

Sequence in context: A237565 A219333 A349697 * A038826 A038815 A076336

Adjacent sequences: A249081 A249082 A249083 * A249085 A249086 A249087

Keyword

nonn

Author

R. H. Hardin, Oct 20 2014

Status

approved