A253133 - OEIS

%I #4 Dec 27 2014 09:39:55

%S 64,952,6515,28428,92041,246003,570578,1191085,2291766,4133344,

%T 7059815,11542364,18172847,27698453,41058154,59405687,84086912,

%U 116790762,159453863,214336718,284126387,371920965,481131250,615892739,780722246

%N Number of length 5+2 0..n arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero

%C Row 5 of A253129

%H R. H. Hardin, <a href="/A253133/b253133.txt">Table of n, a(n) for n = 1..53</a>

%e Some solutions for n=5

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 27 2014