A253134 Number of length 6+2 0..n arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero

144, 3323, 32166, 184145, 764836, 2521335, 7036012, 17264207, 38381418, 78763123, 151375270, 275557605, 479126062, 800684721, 1293413658, 2028024289, 3097019402, 4620705367, 6751984484, 9681773551, 13650121504, 18950897209

Offset

1,1

Comments

Row 6 of A253129

Links

R. H. Hardin, Table of n, a(n) for n = 1..32

Example

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

Crossrefs

Sequence in context: A187166 A231836 A268968 * A168371 A339056 A128989

Adjacent sequences: A253131 A253132 A253133 * A253135 A253136 A253137

Keyword

nonn

Author

R. H. Hardin, Dec 27 2014

Status

approved