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A246889 Number of length n+4 0..5 arrays with some pair in every consecutive five terms totalling exactly 5 1

%I

%S 6210,33294,177648,942216,4971120,26346486,139555230,738947844,

%T 3912529200,20719113168,109715387730,580975750422,3076449953280,

%U 16290853187184,86265445976256,456803864051526,2418927144356598

%N Number of length n+4 0..5 arrays with some pair in every consecutive five terms totalling exactly 5

%C Column 5 of A246892

%H R. H. Hardin, <a href="/A246889/b246889.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 3*a(n-1) +7*a(n-2) +19*a(n-3) +53*a(n-4) -40*a(n-5) -36*a(n-6) -24*a(n-7) -64*a(n-8) +16*a(n-9) +29*a(n-10) -3*a(n-11) +5*a(n-12) +a(n-13) -a(n-14)

%e Some solutions for n=3

%e ..4....1....4....4....1....3....4....0....4....3....1....3....3....0....1....1

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Sep 06 2014

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Last modified March 27 05:44 EDT 2023. Contains 361554 sequences. (Running on oeis4.)