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A249092
Number of length 7+5 0..n arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four
1
22, 243, 11964, 143925, 805518, 5629189, 23480326, 75209315, 238362040, 614349855, 1375887454, 3011935973, 5922207890, 10720937567, 19147697430, 32000182293, 50821260970, 79809454005, 120332402226, 175018554513
OFFSET
1,1
COMMENTS
Row 7 of A249085
LINKS
EXAMPLE
Some solutions for n=4
..4....2....1....0....0....2....1....2....0....2....0....2....1....1....0....4
..1....4....4....0....4....1....0....4....3....1....1....1....3....1....1....1
..3....1....4....1....4....2....0....2....3....4....4....3....3....0....3....0
..1....3....0....1....1....4....1....0....4....4....3....3....0....1....3....3
..0....3....1....4....2....1....0....3....0....1....2....3....1....3....0....4
..0....2....2....0....1....2....4....1....2....3....2....3....1....3....2....3
..4....2....1....0....3....2....1....2....0....2....0....2....4....1....0....4
..1....4....4....3....4....1....3....4....0....4....1....1....3....4....1....1
..3....4....4....1....1....2....0....2....0....1....1....3....0....0....0....0
..4....3....3....4....4....1....1....0....1....1....0....0....0....1....3....0
..3....3....4....4....2....1....3....3....3....4....2....0....4....3....0....1
..3....2....2....0....4....2....4....1....2....3....2....3....1....3....2....0
CROSSREFS
Sequence in context: A249090 A249091 A041930 * A125410 A200206 A252819
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 20 2014
STATUS
approved