A247402 Number of length n+4 0..6 arrays with no disjoint pairs in any consecutive five terms having the same sum

5640, 19080, 65500, 225488, 775668, 2663568, 9228900, 32131008, 111936140, 389317160, 1351717272, 4699161664, 16360262388, 56987348980, 198415286124, 690350350384, 2402167105696, 8362231644240, 29117543438860, 101381411330896

Offset

1,1

Comments

Column 6 of A247404

Links

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

Example

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

Crossrefs

Sequence in context: A161193 A022010 A201252 * A339961 A332738 A359055

Adjacent sequences: A247399 A247400 A247401 * A247403 A247404 A247405

Keyword

nonn

Author

R. H. Hardin, Sep 16 2014

Status

approved