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A249653
Number of length n+4 0..5 arrays with every five consecutive terms having four times some element equal to the sum of the remaining four
1
1046, 1218, 1408, 1620, 1858, 2126, 2590, 3132, 3764, 4498, 5346, 6778, 8510, 10594, 13082, 16026, 20906, 26980, 34468, 43590, 54566, 72558, 95404, 124036, 159386, 202386, 272426, 362494, 476538, 618506, 792346, 1074554, 1440204, 1906020
OFFSET
1,1
COMMENTS
Column 5 of A249656
LINKS
FORMULA
Empirical: a(n) = a(n-1) +9*a(n-5) -9*a(n-6) -26*a(n-10) +26*a(n-11) +25*a(n-15) -25*a(n-16) -a(n-20) +a(n-21) -2*a(n-25) +2*a(n-26)
EXAMPLE
Some solutions for n=6
..3....4....1....4....4....0....5....2....4....3....3....5....0....0....0....4
..5....2....1....2....0....4....2....2....2....3....2....5....0....5....0....2
..5....5....2....1....3....3....0....0....0....0....2....3....0....2....2....3
..3....5....3....0....2....5....1....3....2....4....4....4....4....3....5....2
..4....4....3....3....1....3....2....3....2....5....4....3....1....0....3....4
..3....4....1....4....4....5....0....2....4....3....3....0....0....5....0....4
..5....2....1....2....0....4....2....2....2....3....2....5....0....0....5....2
..0....5....2....1....3....3....5....5....0....0....2....3....0....2....2....3
..3....5....3....5....2....0....1....3....2....4....4....4....4....3....0....2
..4....4....3....3....1....3....2....3....2....5....4....3....1....0....3....4
CROSSREFS
Sequence in context: A110597 A258130 A226114 * A056092 A280809 A252307
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 03 2014
STATUS
approved