A250372 Number of length n+6 0..7 arrays with every seven consecutive terms having the maximum of some three terms equal to the minimum of the remaining four terms

720112, 3179756, 14647808, 68640720, 320301600, 1460936344, 6398378176, 26383796944, 113797974816, 503805257096, 2254176207808, 10118098941416, 45324022891904, 201877207584720, 891282912333344, 3942816699494356

Offset

1,1

Comments

Column 7 of A250373

Links

R. H. Hardin, Table of n, a(n) for n = 1..112

Example

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

Crossrefs

Sequence in context: A301643 A252887 A204403 * A015346 A190932 A153580

Adjacent sequences: A250369 A250370 A250371 * A250373 A250374 A250375

Keyword

nonn

Author

R. H. Hardin, Nov 19 2014

Status

approved