A247409 Number of length 5+4 0..n arrays with no disjoint pairs in any consecutive five terms having the same sum

0, 40, 528, 14456, 132368, 775668, 3385192, 13124760, 41711352, 123222780, 322279484, 779176460, 1746083264, 3710742916, 7434986372, 14291613796, 26308317500, 46795105776, 80481695004, 134719014924, 219309670828

Offset

1,2

Comments

Row 5 of A247404

Links

R. H. Hardin, Table of n, a(n) for n = 1..65

Example

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

Crossrefs

Sequence in context: A093744 A109105 A269692 * A107419 A159946 A185744

Adjacent sequences: A247406 A247407 A247408 * A247410 A247411 A247412

Keyword

nonn

Author

R. H. Hardin, Sep 16 2014

Status

approved