A249191 Number of length n+6 0..2 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

1792, 4586, 11874, 30876, 80354, 208876, 541624, 1400008, 3618986, 9363890, 24245852, 62802512, 162682626, 421350312, 1091065338, 2824952300, 7314373948, 18939413676, 49042889408, 126997380012, 328860987784, 851576753420

Offset

1,1

Comments

Column 2 of A249197

Links

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

Example

Some solutions for n=5
..0....0....1....2....1....2....2....2....2....1....2....1....2....2....0....0
..0....0....0....1....2....1....1....2....0....1....0....0....0....0....2....1
..1....1....1....0....2....1....2....1....2....1....2....1....2....0....0....2
..1....1....2....2....1....2....2....1....0....0....1....1....2....0....0....2
..0....2....2....2....2....1....0....0....2....2....1....0....0....0....2....1
..0....0....2....2....2....2....1....1....1....2....2....1....0....2....2....0
..1....1....0....2....0....1....0....2....1....2....2....1....2....1....2....2
..1....1....2....1....1....2....0....2....2....1....2....0....2....1....0....1
..2....2....1....1....0....0....1....2....0....0....2....1....2....1....2....1
..0....2....1....0....2....2....1....2....2....2....0....0....2....1....0....2
..1....2....1....0....2....2....0....0....2....1....1....0....2....2....2....2

Crossrefs

Sequence in context: A207549 A207316 A206699 * A234203 A220058 A235898

Adjacent sequences: A249188 A249189 A249190 * A249192 A249193 A249194

Keyword

nonn

Author

R. H. Hardin, Oct 23 2014

Status

approved