A250149 Number of length n+6 0..3 arrays with every seven consecutive terms having the maximum of some two terms equal to the minimum of the remaining five terms

9160, 26710, 79740, 240144, 721644, 2144132, 6242596, 17629584, 51324016, 150838232, 444777588, 1311902606, 3863379144, 11344019324, 33217022852, 97452211700, 286572431480, 843400469300, 2482367633512, 7303546874830

Offset

1,1

Comments

Column 3 of A250154

Links

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

Example

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

Crossrefs

Sequence in context: A256766 A210140 A232759 * A243969 A231424 A234887

Adjacent sequences: A250146 A250147 A250148 * A250150 A250151 A250152

Keyword

nonn

Author

R. H. Hardin, Nov 13 2014

Status

approved