A249878 Number of length n+6 0..3 arrays with no seven consecutive terms having the maximum of any three terms equal to the minimum of the remaining four terms

7420, 18390, 46460, 118638, 304782, 785512, 2027106, 5230332, 13575241, 35268844, 91649283, 238126906, 618542307, 1606205300, 4170218895, 10838679346, 28180516833, 73277272466, 190527090485, 495299085639, 1287357630634

Offset

1,1

Comments

Column 3 of A249883

Links

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

Example

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

Crossrefs

Sequence in context: A237311 A023940 A116195 * A360328 A360355 A324897

Adjacent sequences: A249875 A249876 A249877 * A249879 A249880 A249881

Keyword

nonn

Author

R. H. Hardin, Nov 07 2014

Status

approved