cp's OEIS Frontend

A249469 Number of length 3+4 0..n arrays with no five consecutive terms having four times any element equal to the sum of the remaining four.

%I A249469 #6 Jul 23 2025 12:01:41
%S A249469 112,1140,10124,48180,185982,565516,1488294,3491108,7479834,14872588,
%T A249469 27848932,49534034,84370308,138424022,219934350,339564798,511246534,
%U A249469 752562638,1085714794,1538310894,2144026442,2943704164,3986818718
%N A249469 Number of length 3+4 0..n arrays with no five consecutive terms having four times any element equal to the sum of the remaining four.
%C A249469 Row 3 of A249466
%H A249469 R. H. Hardin, <a href="/A249469/b249469.txt">Table of n, a(n) for n = 1..70</a>
%e A249469 Some solutions for n=5
%e A249469 ..4....0....1....0....3....0....0....3....0....0....3....4....0....4....0....3
%e A249469 ..4....1....1....2....2....5....4....1....3....3....5....4....1....1....3....5
%e A249469 ..4....3....1....1....1....4....4....0....1....4....2....1....2....0....4....1
%e A249469 ..2....3....1....0....0....4....3....0....0....1....1....4....4....2....5....0
%e A249469 ..0....0....5....0....2....1....3....3....4....3....5....0....2....1....2....5
%e A249469 ..1....4....0....0....3....3....3....4....0....2....2....1....0....2....0....2
%e A249469 ..4....1....4....0....5....1....0....0....2....1....2....5....3....2....0....0
%K A249469 nonn
%O A249469 1,1
%A A249469 _R. H. Hardin_, Oct 29 2014