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A248997
Number of length n+4 0..4 arrays with no five consecutive terms having two times the sum of any three elements equal to three times the sum of the remaining two
1
2540, 10360, 42308, 172888, 706704, 2888944, 11810564, 48286456, 197422012, 807188768, 3300330556, 13494048552, 55173290154, 225588339824, 922369809354, 3771323457556, 15419939994758, 63048058448056, 257786893864722
OFFSET
1,1
COMMENTS
Column 4 of A249001
LINKS
EXAMPLE
Some solutions for n=4
..0....1....2....0....0....1....1....0....2....0....1....2....2....0....2....2
..4....0....2....2....0....3....4....0....3....4....3....3....3....1....4....4
..2....1....1....0....0....2....0....1....1....0....4....3....0....0....0....0
..4....3....2....0....3....4....3....4....4....2....0....0....0....0....4....4
..3....1....0....4....0....4....3....4....3....2....4....1....4....0....3....3
..0....4....3....1....4....0....3....4....3....0....4....4....0....1....3....4
..4....2....2....1....4....1....4....0....2....3....3....0....1....1....2....0
..3....1....4....1....1....4....3....0....0....4....2....0....0....0....1....0
CROSSREFS
Sequence in context: A254021 A254014 A254888 * A234407 A135924 A250686
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 18 2014
STATUS
approved