A250055 Number of length n+6 0..4 arrays with no seven consecutive terms having the maximum of any two terms equal to the minimum of the remaining five terms

40320, 142170, 505154, 1800040, 6415638, 22838540, 81138873, 287576973, 1035133361, 3726902703, 13408792702, 48182327412, 172873769948, 619305311245, 2215918424908, 7954397997847, 28575913258576, 102678026496263

Offset

1,1

Comments

Column 4 of A250059

Links

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

Example

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

Crossrefs

Sequence in context: A269126 A168359 A090394 * A321844 A226887 A284205

Adjacent sequences: A250052 A250053 A250054 * A250056 A250057 A250058

Keyword

nonn

Author

R. H. Hardin, Nov 11 2014

Status

approved