A249175 Number of length 4+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, 532834, 1837087, 5062910, 12147433, 25806556, 50739417, 92614678, 187232361, 350034382, 617715207, 1030388992, 1650959847, 2538262186, 3782707737, 5833734570, 8712114313, 12641601904

Offset

1,1

Comments

Row 4 of A249171.

Links

Table of n, a(n) for n=1..23.

Example

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

Crossrefs

Cf. A249171.

Sequence in context: A249172 A249173 A249174 * A249176 A249177 A249178

Adjacent sequences: A249172 A249173 A249174 * A249176 A249177 A249178

Keyword

nonn

Author

R. H. Hardin, Oct 22 2014

Status

approved