A248986 - OEIS

%I #4 Oct 18 2014 19:27:45

%S 5028,7964,12644,20128,32094,51166,86800,147582,250880,425828,720138,

%T 1273450,2248778,3960786,6947868,12117086,21840962,39264144,70332606,

%U 125391740,222194472,403889704,732101414,1322338468,2377963158

%N Number of length n+4 0..7 arrays with every five consecutive terms having two times the sum of some three elements equal to three times the sum of the remaining two

%C Column 7 of A248987

%H R. H. Hardin, <a href="/A248986/b248986.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=6

%e ..4....1....2....4....6....2....5....0....1....0....1....2....7....6....4....3

%e ..4....4....1....0....2....3....1....6....5....4....3....7....6....7....0....7

%e ..3....4....4....1....6....4....4....4....7....4....6....0....6....4....5....7

%e ..3....0....1....0....2....0....6....2....7....2....0....1....4....2....5....2

%e ..6....1....2....5....4....6....4....3....5....0....5....5....7....1....1....6

%e ..4....1....2....4....6....2....0....0....1....0....1....2....2....6....4....3

%e ..4....4....1....0....2....3....1....1....5....4....3....7....1....2....0....7

%e ..3....4....4....6....1....4....4....4....7....4....6....0....1....4....5....7

%e ..3....5....6....0....2....5....6....2....7....2....0....6....4....7....0....2

%e ..6....1....2....0....4....6....4....3....5....0....5....5....7....6....6....6

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 18 2014