A254697 Number of length n+4 0..7 arrays with every five consecutive terms having the maximum of some two terms equal to the minimum of the remaining three terms

8688, 33048, 126456, 469376, 1618264, 4985336, 17080712, 60483408, 214599288, 752272724, 2563107328, 8854381384, 31053941712, 109232749860, 383284939872, 1337155562472, 4669185534048, 16386702006492, 57650707026736

Offset

1,1

Comments

Column 7 of A254698

Links

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

Example

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

Crossrefs

Sequence in context: A253617 A203737 A214487 * A242140 A235171 A237875

Adjacent sequences: A254694 A254695 A254696 * A254698 A254699 A254700

Keyword

nonn

Author

R. H. Hardin, Feb 05 2015

Status

approved