A249177 Number of length 6+6 0..n arrays with every seven consecutive terms having four times the sum of some three elements equal to three times the sum of the remaining four

2, 395, 2258, 11177, 39066, 115437, 789432, 3638343, 12172376, 33915383, 80627880, 173244175, 340131464, 798224263, 1688998380, 3320267493, 6050921068, 10478993699

Offset

1,1

Comments

Row 6 of A249171

Links

Table of n, a(n) for n=1..18.

Example

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

Crossrefs

Sequence in context: A249174 A249175 A249176 * A249178 A375843 A281650

Adjacent sequences: A249174 A249175 A249176 * A249178 A249179 A249180

Keyword

nonn

Author

R. H. Hardin, Oct 22 2014

Status

approved