A247991 Number of length n+5 0..4 arrays with no disjoint triples in any consecutive six terms having the same sum

9080, 27800, 86736, 274204, 874884, 2808970, 9057366, 29402376, 95651698, 311754322, 1017637134, 3325735912, 10879733046, 35643742950, 116854360230, 383346751676, 1258285012250, 4131901535732, 13572720451844, 44601455425346

Offset

1,1

Comments

Column 4 of A247995

Links

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

Example

Some solutions for n=3
..0....2....0....2....4....1....0....0....2....3....3....2....0....1....4....4
..2....2....0....4....0....1....4....2....0....0....0....2....4....3....3....2
..3....2....1....4....3....3....3....0....4....0....4....0....0....1....2....0
..0....0....1....1....3....3....3....3....0....4....1....3....2....0....0....1
..1....2....4....0....1....1....4....0....0....0....3....4....2....3....2....1
..3....2....0....4....2....0....3....2....3....4....0....0....3....3....2....1
..2....2....3....0....4....3....4....4....0....2....4....2....4....0....0....4
..0....3....2....0....2....1....0....4....2....1....0....4....4....4....1....2

Crossrefs

Sequence in context: A118700 A234339 A346113 * A234532 A097209 A015298

Adjacent sequences: A247988 A247989 A247990 * A247992 A247993 A247994

Keyword

nonn

Author

R. H. Hardin, Sep 28 2014

Status

approved