A249172 Number of length 1+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, 287988, 650085, 1339852, 2581121, 4671630, 8093245, 13377140, 21392687, 33096114, 49833787, 73122200, 105132375, 147967210, 204844311, 278931122, 374403885, 495751168, 648915047, 839349796

Offset

1,1

Comments

Row 1 of A249171

Links

R. H. Hardin, Table of n, a(n) for n = 1..38

Example

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

Crossrefs

Sequence in context: A249260 A249261 A249262 * A249173 A249174 A249175

Adjacent sequences: A249169 A249170 A249171 * A249173 A249174 A249175

Keyword

nonn

Author

R. H. Hardin, Oct 22 2014

Status

approved