cp's OEIS Frontend

A249473 Number of length 7+4 0..n arrays with no five consecutive terms having four times any element equal to the sum of the remaining four.

%I A249473 #6 Jul 23 2025 12:02:09
%S A249473 1546,41084,1422232,16249428,144140836,843025344,3940066010,
%T A249473 15322870410,51559998434,153928094968,417597134828,1043160494934,
%U A249473 2431475134350,5337351650512,11135359755600,22188626020430,42474008430092
%N A249473 Number of length 7+4 0..n arrays with no five consecutive terms having four times any element equal to the sum of the remaining four.
%C A249473 Row 7 of A249466
%H A249473 R. H. Hardin, <a href="/A249473/b249473.txt">Table of n, a(n) for n = 1..65</a>
%e A249473 Some solutions for n=2
%e A249473 ..1....0....1....1....2....2....2....1....1....2....1....2....2....1....0....0
%e A249473 ..0....2....2....0....1....2....1....1....2....1....0....0....1....0....0....1
%e A249473 ..0....1....2....0....2....2....1....1....1....0....0....2....1....0....0....1
%e A249473 ..0....2....2....2....2....0....2....1....2....1....2....1....2....1....1....2
%e A249473 ..2....2....2....0....2....2....2....2....2....0....0....1....2....1....0....0
%e A249473 ..0....1....1....1....2....2....0....2....2....0....2....2....0....2....1....0
%e A249473 ..1....1....2....0....0....0....2....2....2....1....2....1....2....2....0....0
%e A249473 ..0....2....2....1....2....2....0....0....1....2....1....2....0....2....1....0
%e A249473 ..1....1....0....1....1....0....0....1....1....0....2....1....2....0....0....1
%e A249473 ..1....2....2....0....1....0....0....1....1....1....0....2....2....1....1....0
%e A249473 ..0....0....1....2....2....1....0....2....2....0....2....1....2....1....0....2
%K A249473 nonn
%O A249473 1,1
%A A249473 _R. H. Hardin_, Oct 29 2014