A250234 Number of length 7+1 0..n arrays with the sum of the cubes of adjacent differences multiplied by some arrangement of +-1 equal to zero

128, 1907, 10952, 47953, 144624, 371227, 838604, 1732385, 3243544, 5786679, 9634068, 15561441, 23952104, 35992727, 52236900, 74411997

Offset

1,1

Comments

Row 7 of A250229

Links

Table of n, a(n) for n=1..16.

Example

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

Crossrefs

Sequence in context: A250356 A269587 A232053 * A364690 A093528 A283338

Adjacent sequences: A250231 A250232 A250233 * A250235 A250236 A250237

Keyword

nonn

Author

R. H. Hardin, Nov 14 2014

Status

approved