A249877 Number of length n+6 0..2 arrays with no seven consecutive terms having the maximum of any three terms equal to the minimum of the remaining four terms

805, 1365, 2335, 4019, 6949, 12053, 20942, 36396, 63995, 112578, 197966, 347897, 610999, 1072605, 1882670, 3313692, 5836415, 10279049, 18094244, 31833358, 55982977, 98442660, 173298007, 305212887, 537598707, 946696326, 1666491232

Offset

1,1

Comments

Column 2 of A249883

Links

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

Example

Some solutions for n=6
..1....2....0....2....0....1....2....2....2....1....1....2....1....0....1....2
..2....1....2....1....2....2....1....2....0....0....1....0....2....1....1....2
..1....2....0....2....2....0....0....2....2....2....1....2....2....2....0....2
..0....2....0....0....0....0....0....1....1....0....0....0....2....2....1....0
..1....2....2....2....1....2....2....0....0....0....1....2....0....0....0....2
..0....0....2....0....2....0....1....0....2....1....0....0....0....0....0....1
..0....1....2....2....0....2....0....2....0....2....0....1....0....2....2....0
..2....2....0....0....0....2....1....2....2....2....2....2....2....2....2....2
..2....0....2....2....1....2....2....2....0....2....1....2....2....1....1....2
..2....0....0....2....1....1....0....0....2....2....1....0....1....2....0....2
..0....2....0....1....0....0....0....1....2....1....0....0....2....0....1....0
..1....1....2....0....1....2....1....0....1....1....2....2....0....2....0....2

Crossrefs

Sequence in context: A204836 A267932 A267979 * A252515 A252516 A252523

Adjacent sequences: A249874 A249875 A249876 * A249878 A249879 A249880

Keyword

nonn

Author

R. H. Hardin, Nov 07 2014

Status

approved