A247990 Number of length n+5 0..3 arrays with no disjoint triples in any consecutive six terms having the same sum

2292, 5316, 12612, 30404, 74132, 182084, 448956, 1112546, 2766188, 6890602, 17179596, 42841392, 106825864, 266521044, 665344430, 1661532548, 4149517110, 10361716506, 25869860808, 64591142518, 161291903076, 402808477958

Offset

1,1

Comments

Column 3 of A247995

Links

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

Example

Some solutions for n=6
..0....1....2....0....1....1....1....0....2....2....0....0....0....2....0....0
..3....0....0....3....2....0....2....3....1....0....3....3....0....1....3....2
..2....2....3....0....2....0....0....1....1....0....1....2....0....0....3....2
..1....0....0....1....0....1....1....0....1....0....0....3....2....0....3....2
..0....3....0....0....0....2....2....2....3....3....0....3....2....3....0....3
..3....3....3....3....2....1....3....3....1....2....3....0....2....3....1....2
..2....0....2....0....3....3....1....0....0....3....0....3....3....2....3....2
..3....1....0....0....2....0....2....3....1....3....1....0....0....0....3....0
..2....3....3....1....2....2....2....1....3....3....0....2....2....0....0....2
..3....3....0....0....0....3....1....0....3....3....3....1....2....0....3....0
..0....1....1....1....2....0....0....0....3....1....2....1....2....2....3....1

Crossrefs

Sequence in context: A236700 A268892 A206663 * A206103 A251302 A198146

Adjacent sequences: A247987 A247988 A247989 * A247991 A247992 A247993

Keyword

nonn

Author

R. H. Hardin, Sep 28 2014

Status

approved