Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #4 Sep 23 2014 07:09:18
%S 8,2584,71060,1032952,8465936,50284864,228817500,865051288,2803353724,
%T 8076111272,21047881136,50595638620,113391448136,239642226524,
%U 480927920532,923214323088,1703288171740,3035113016796,5241168202156
%N Number of length 7+3 0..n arrays with no disjoint pairs in any consecutive four terms having the same sum
%C Row 7 of A247726
%H R. H. Hardin, <a href="/A247733/b247733.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..2....0....0....3....3....1....2....0....0....3....0....1....2....2....0....1
%e ..1....2....0....3....2....1....1....2....3....1....0....2....1....0....2....2
%e ..2....3....1....0....0....3....0....2....1....0....0....2....0....1....1....2
%e ..2....0....2....2....0....0....0....2....3....1....2....0....2....0....0....0
%e ..0....2....2....0....0....1....0....0....0....3....3....2....0....0....0....2
%e ..2....3....0....0....1....3....3....3....3....0....0....3....1....2....3....2
%e ..1....3....2....3....3....0....0....0....3....0....2....2....0....0....0....2
%e ..2....0....3....2....1....0....0....2....3....2....0....0....0....0....2....0
%e ..0....2....0....3....0....1....0....0....0....3....0....0....3....0....0....2
%e ..0....0....2....3....1....2....1....3....3....3....0....1....2....2....0....1
%K nonn
%O 1,1
%A _R. H. Hardin_, Sep 23 2014