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A247725 Number of length n+3 0..7 arrays with no disjoint pairs in any consecutive four terms having the same sum 1

%I

%S 3248,20816,133780,860360,5532212,35577396,228817500,1471661464,

%T 9465023576,60874728614,391519927124,2518086482802,16195230721252,

%U 104160655154148,669915976764744,4308607742197298,27711087156320840

%N Number of length n+3 0..7 arrays with no disjoint pairs in any consecutive four terms having the same sum

%C Column 7 of A247726

%H R. H. Hardin, <a href="/A247725/b247725.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

%e ..7....7....7....6....6....4....0....6....2....5....5....2....7....2....0....2

%e ..6....0....6....3....4....3....3....7....3....6....4....4....2....1....6....1

%e ..3....7....7....0....7....7....6....1....6....0....1....7....3....4....7....2

%e ..7....2....4....0....2....4....6....1....6....3....1....2....4....6....0....6

%e ..5....1....4....6....1....2....2....0....0....7....3....0....6....6....7....2

%e ..2....2....5....4....5....6....6....6....7....7....0....3....2....2....2....5

%K nonn

%O 1,1

%A _R. H. Hardin_, Sep 23 2014

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Last modified May 16 09:01 EDT 2022. Contains 353695 sequences. (Running on oeis4.)