A249196 Number of length n+6 0..7 arrays with no seven consecutive terms having four times the sum of any three elements equal to three times the sum of the remaining four.

1809164, 12523980, 86727506, 600707602, 4161333538, 28830275130, 199757196902, 1384167006986, 9592120648562, 66472910762904, 460657299666950, 3192374733113098, 22123403434144708, 153317520131481478

Offset

1,1

Comments

Column 7 of A249197

Links

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

Example

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

Crossrefs

Sequence in context: A140861 A234866 A395302 * A137819 A145537 A183735

Adjacent sequences: A249193 A249194 A249195 * A249197 A249198 A249199

Keyword

nonn

Author

R. H. Hardin, Oct 23 2014

Status

approved