A249287 - OEIS

%I #4 Oct 24 2014 08:29:12

%S 1098,5646,29100,150112,774542,3996816,20626236,106449362,549377682,

%T 2835311880,14632955578,75520363990,389759189220,2011540365174,

%U 10381526171750,53578887648690,276519776741626,1427114135562896

%N Number of length n+3 0..5 arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth

%C Column 5 of A249290

%H R. H. Hardin, <a href="/A249287/b249287.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A249287/a249287.txt">Empirical recurrence of order 87</a>

%F Empirical recurrence of order 87 (see link above)

%e Some solutions for n=4

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 24 2014