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A249654
Number of length n+4 0..6 arrays with every five consecutive terms having four times some element equal to the sum of the remaining four
1
2077, 2589, 3221, 3981, 4877, 5917, 7709, 9957, 12707, 16005, 19897, 26589, 35003, 45331, 57773, 72537, 98073, 130311, 169993, 217901, 274857, 373909, 499355, 654105, 841221, 1063917, 1452913, 1946663, 2556733, 3295241, 4174857, 5716733
OFFSET
1,1
COMMENTS
Column 6 of A249656
LINKS
FORMULA
Empirical: a(n) = a(n-1) +22*a(n-5) -22*a(n-6) -208*a(n-10) +208*a(n-11) +1108*a(n-15) -1108*a(n-16) -3672*a(n-20) +3672*a(n-21) +7922*a(n-25) -7922*a(n-26) -11388*a(n-30) +11388*a(n-31) +11046*a(n-35) -11046*a(n-36) -7181*a(n-40) +7181*a(n-41) +2915*a(n-45) -2915*a(n-46) -560*a(n-50) +560*a(n-51) -61*a(n-55) +61*a(n-56) +54*a(n-60) -54*a(n-61) -8*a(n-65) +8*a(n-66)
EXAMPLE
Some solutions for n=6
..0....5....0....4....1....5....4....6....1....1....4....2....2....3....3....2
..6....5....1....6....5....1....6....0....3....0....5....0....4....2....1....1
..2....0....6....5....5....2....1....6....4....1....1....1....6....1....3....0
..1....6....5....5....4....2....4....0....6....2....5....1....0....6....1....1
..1....4....3....5....5....0....5....3....1....6....5....6....3....3....2....6
..0....5....0....4....6....0....4....6....6....1....4....2....2....3....3....2
..1....5....1....6....0....6....6....0....3....0....5....0....4....2....1....1
..2....0....6....0....5....2....6....6....4....1....6....1....1....1....3....0
..1....6....5....5....4....2....4....0....1....2....5....1....5....6....6....1
..1....4....3....5....5....0....0....3....6....1....0....1....3....3....2....6
CROSSREFS
Sequence in context: A062913 A096927 A076425 * A180921 A270537 A076581
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 03 2014
STATUS
approved