A247994 Number of length n+5 0..7 arrays with no disjoint triples in any consecutive six terms having the same sum.

167576, 884032, 4733944, 25559480, 138568024, 752268668, 4083208500, 22177936206, 120522456308, 655151391416, 3561783434344, 19363718256826, 105267309471938, 572298528742634, 3111534766315620, 16917483604752580

Offset

1,1

Comments

Column 7 of A247995

Links

R. H. Hardin, Table of n, a(n) for n = 1..84

Example

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

Crossrefs

Sequence in context: A236489 A235436 A262802 * A235741 A236081 A140941

Adjacent sequences: A247991 A247992 A247993 * A247995 A247996 A247997

Keyword

nonn

Author

R. H. Hardin, Sep 28 2014

Status

approved