A249005 - OEIS

%I #4 Oct 18 2014 19:52:22

%S 216,2802,28240,172888,822348,2865126,8902860,23177368,55906496,

%T 122921570,254998668,492803174,916912140,1618570176,2775224082,

%U 4580364152,7372967710,11513855042,17636594106,26371506592,38792087628

%N Number of length 4+4 0..n arrays with no five consecutive terms having two times the sum of any three elements equal to three times the sum of the remaining two

%C Row 4 of A249001

%H R. H. Hardin, <a href="/A249005/b249005.txt">Table of n, a(n) for n = 1..69</a>

%e Some solutions for n=4

%e ..0....0....2....0....0....0....1....0....2....0....2....0....0....2....0....1

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 18 2014