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A249297
Number of length 7+3 0..n arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth
1
548, 18232, 237480, 3164312, 20626236, 106687006, 446465388, 1564897170, 4760601928, 13086372374, 32599885184, 75623146588, 164589989052, 338640259244, 663790705232, 1250055198186, 2264746878484, 3971666747616
OFFSET
1,1
COMMENTS
Row 7 of A249290
LINKS
EXAMPLE
Some solutions for n=2
..0....0....0....0....1....0....0....1....1....0....2....1....0....0....1....0
..0....2....1....1....2....0....0....0....1....0....2....0....0....2....0....2
..2....0....0....0....2....0....1....2....2....2....1....2....0....1....0....0
..1....1....0....2....2....2....0....0....2....0....1....2....2....2....1....2
..2....0....2....0....0....0....1....0....0....1....2....0....0....1....2....1
..1....2....1....0....1....0....0....1....0....2....2....1....0....2....0....2
..2....0....0....2....2....1....2....0....2....0....2....2....2....1....2....2
..0....2....2....0....2....0....2....2....0....0....0....0....0....1....0....2
..2....0....2....2....1....2....1....2....2....1....2....0....0....2....0....0
..2....0....1....2....1....0....2....2....1....1....2....1....0....2....2....1
CROSSREFS
Sequence in context: A015324 A103537 A136928 * A245957 A352543 A206506
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 24 2014
STATUS
approved