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A249296
Number of length 6+3 0..n arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth
1
298, 7132, 73204, 740616, 3996816, 17477172, 63142432, 194636612, 528526458, 1310146892, 2974170600, 6332136700, 12731677772, 24341338640, 44558190142, 78679898026, 134198692616, 222298159666, 358597980904, 564781557470
OFFSET
1,1
COMMENTS
Row 6 of A249290
LINKS
EXAMPLE
Some solutions for n=3
..0....3....0....3....1....0....3....0....3....0....1....0....2....1....0....1
..2....2....3....3....3....2....0....0....3....3....3....3....1....1....1....1
..0....0....2....3....2....1....1....2....2....1....2....1....3....0....2....3
..0....1....0....0....0....3....2....0....1....1....0....1....1....0....0....3
..3....3....2....0....0....3....0....2....0....0....1....1....2....1....0....2
..3....2....0....3....3....1....3....1....2....0....0....3....3....2....0....3
..0....3....3....0....3....1....2....0....3....2....2....3....3....2....2....1
..3....1....2....0....3....0....2....0....1....2....0....1....3....0....0....3
..1....1....2....3....0....0....0....2....1....0....1....1....2....1....1....3
CROSSREFS
Sequence in context: A234659 A186126 A129037 * A245956 A235229 A064908
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 24 2014
STATUS
approved