A249174 Number of length 3+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, 435346, 1301347, 3254058, 7250601, 14586864, 27468493, 48432962, 90680841, 159195650, 266270819, 425175128, 656161039, 978109790, 1420349857, 2103099262, 3031628829, 4265730016, 5881688235

Offset

1,1

Comments

Row 3 of A249171

Links

R. H. Hardin, Table of n, a(n) for n = 1..26

Example

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

Crossrefs

Sequence in context: A249262 A249172 A249173 * A249175 A249176 A249177

Adjacent sequences: A249171 A249172 A249173 * A249175 A249176 A249177

Keyword

nonn

Author

R. H. Hardin, Oct 22 2014

Status

approved