A249211 Number of length n+6 0..7 arrays with no seven consecutive terms having five times the sum of any two elements equal to two times the sum of the remaining five

1826748, 12777540, 89437990, 626273302, 4386401650, 30726981418, 215266489016, 1508222615012, 10567758194606, 74046470379458, 518835076829444, 3635440862473348, 25473405391334868, 178491926778647038

Offset

1,1

Comments

Column 7 of A249212

Links

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

Example

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

Crossrefs

Sequence in context: A183735 A147525 A205412 * A244074 A204951 A205639

Adjacent sequences: A249208 A249209 A249210 * A249212 A249213 A249214

Keyword

nonn

Author

R. H. Hardin, Oct 23 2014

Status

approved