A250233 Number of length 6+1 0..n arrays with the sum of the cubes of adjacent differences multiplied by some arrangement of +-1 equal to zero

64, 651, 2720, 9437, 24888, 59415, 120412, 222037, 374712, 604619, 917564, 1367285, 1950096, 2728843, 3695508, 4937005, 6440172, 8341783, 10600204, 13351293, 16565560, 20413939, 24820216, 30057481

Offset

1,1

Comments

Row 6 of A250229

Links

Table of n, a(n) for n=1..24.

Example

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

Crossrefs

Sequence in context: A091083 A136950 A136957 * A297666 A269586 A269080

Adjacent sequences: A250230 A250231 A250232 * A250234 A250235 A250236

Keyword

nonn

Author

R. H. Hardin, Nov 14 2014

Status

approved