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A202249 Number of zero-sum -5..5 arrays of n elements with adjacent element differences also in -5..5.

%I A202249 #7 Dec 27 2023 22:35:02
%S A202249 1,5,41,309,2385,18841,150523,1212443,9832015,80165217,656550255,
%T A202249 5397261675,44510060161,368068132303,3050896796199,25341289818675,
%U A202249 210875713442797,1757652942915635,14671489102807881,122627141004142679
%N A202249 Number of zero-sum -5..5 arrays of n elements with adjacent element differences also in -5..5.
%C A202249 Column 5 of A202252.
%H A202249 R. H. Hardin, <a href="/A202249/b202249.txt">Table of n, a(n) for n = 1..210</a>
%e A202249 Some solutions for n=6
%e A202249 ..0....0...-4....3....0....4...-3...-1...-3....4...-2....3...-4...-4...-1...-1
%e A202249 .-5....2....0...-1....3...-1....2....1...-3...-1....0....3...-5...-4...-2....3
%e A202249 .-2...-2....1...-2....3...-2....3...-2....0...-3....0....2...-1....0....0....0
%e A202249 ..3...-3....1...-4...-1...-1....4...-1....3...-2....4...-2....1....1....2...-5
%e A202249 ..0....2....0....0...-2....2...-1....3....1....3....1...-1....4....2...-1....0
%e A202249 ..4....1....2....4...-3...-2...-5....0....2...-1...-3...-5....5....5....2....3
%Y A202249 Cf. A202252.
%K A202249 nonn
%O A202249 1,2
%A A202249 _R. H. Hardin_, Dec 14 2011