cp's OEIS Frontend

A249296 Number of length 6+3 0..n arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth.

%I A249296 #6 Jul 23 2025 11:58:26
%S A249296 298,7132,73204,740616,3996816,17477172,63142432,194636612,528526458,
%T A249296 1310146892,2974170600,6332136700,12731677772,24341338640,44558190142,
%U A249296 78679898026,134198692616,222298159666,358597980904,564781557470
%N A249296 Number of length 6+3 0..n arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth.
%C A249296 Row 6 of A249290
%H A249296 R. H. Hardin, <a href="/A249296/b249296.txt">Table of n, a(n) for n = 1..210</a>
%e A249296 Some solutions for n=3
%e A249296 ..0....3....0....3....1....0....3....0....3....0....1....0....2....1....0....1
%e A249296 ..2....2....3....3....3....2....0....0....3....3....3....3....1....1....1....1
%e A249296 ..0....0....2....3....2....1....1....2....2....1....2....1....3....0....2....3
%e A249296 ..0....1....0....0....0....3....2....0....1....1....0....1....1....0....0....3
%e A249296 ..3....3....2....0....0....3....0....2....0....0....1....1....2....1....0....2
%e A249296 ..3....2....0....3....3....1....3....1....2....0....0....3....3....2....0....3
%e A249296 ..0....3....3....0....3....1....2....0....3....2....2....3....3....2....2....1
%e A249296 ..3....1....2....0....3....0....2....0....1....2....0....1....3....0....0....3
%e A249296 ..1....1....2....3....0....0....0....2....1....0....1....1....2....1....1....3
%K A249296 nonn
%O A249296 1,1
%A A249296 _R. H. Hardin_, Oct 24 2014