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A247531 Number of length n+3 0..6 arrays with some disjoint pairs in every consecutive four terms having the same sum.

%I A247531 #6 Jul 23 2025 11:35:43
%S A247531 553,1033,2009,3997,8051,16683,34695,72269,150677,318575,671847,
%T A247531 1413661,2970293,6314241,13372035,28225763,59454011,126633283,
%U A247531 268599173,567619549,1196758327,2551010159,5414437825,11447235523,24144688307
%N A247531 Number of length n+3 0..6 arrays with some disjoint pairs in every consecutive four terms having the same sum.
%C A247531 Column 6 of A247533
%H A247531 R. H. Hardin, <a href="/A247531/b247531.txt">Table of n, a(n) for n = 1..210</a>
%H A247531 R. H. Hardin, <a href="/A247531/a247531.txt">Empirical recurrence of order 82</a>
%F A247531 Empirical recurrence of order 82 (see link above)
%e A247531 Some solutions for n=6
%e A247531 ..6....4....4....3....4....1....4....4....2....2....6....4....0....5....6....6
%e A247531 ..4....6....5....3....3....2....6....3....2....0....5....3....3....1....0....1
%e A247531 ..5....1....6....4....3....1....5....6....3....3....4....3....2....4....4....4
%e A247531 ..3....3....5....4....2....2....5....1....1....5....5....4....1....2....2....3
%e A247531 ..2....4....6....3....4....3....4....4....4....2....4....4....2....3....6....0
%e A247531 ..4....6....5....5....5....0....4....3....2....6....5....3....3....5....4....1
%e A247531 ..3....5....4....4....3....1....3....2....5....1....4....3....2....6....4....2
%e A247531 ..3....5....3....4....4....4....3....5....3....5....3....2....1....2....2....3
%e A247531 ..2....4....4....3....2....3....2....4....4....0....2....2....4....3....2....2
%K A247531 nonn
%O A247531 1,1
%A A247531 _R. H. Hardin_, Sep 18 2014