A249192 Number of length n+6 0..3 arrays with no seven consecutive terms having four times the sum of any three elements equal to three times the sum of the remaining four

14126, 49730, 175616, 620648, 2194096, 7758744, 27446576, 97142002, 343823110, 1217189036, 4309583172, 15259429154, 54032830720, 191334444394, 677549639252, 2399364764326, 8496828576138, 30089971138492, 106558849855686

Offset

1,1

Comments

Column 3 of A249197

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A206837 A206899 A207289 * A204282 A134610 A104825

Adjacent sequences: A249189 A249190 A249191 * A249193 A249194 A249195

Keyword

nonn

Author

R. H. Hardin, Oct 23 2014

Status

approved