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%I #5 Mar 31 2012 12:36:46
%S 13,127,967,5509,32267,188505,1104357,6471075,37917347,222179581,
%T 1301902689,7628745319,44701958081,261938834035,1534876473727,
%U 8993877595975,52701197650513,308811879264259,1809537203539017
%N Number of -6..6 arrays of n elements with first, second and third differences also in -6..6
%C Column 6 of A202124
%H R. H. Hardin, <a href="/A202122/b202122.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=5
%e .-4...-3....0...-3....0...-5....4...-1...-1...-5....3....2...-4...-6....3....1
%e .-1...-5...-5....1....4...-6...-2....2...-4...-1...-3....5...-3...-6....4....2
%e ..2...-5...-6....5....2...-3...-3....4...-2....2...-5....2...-4...-1....2....0
%e ..4...-5...-4....5...-2...-1...-4....4....1....3...-1...-1...-2....4....0...-2
%e ..3....0...-2....2...-4....5...-3....5....2....1....3...-4....1....5...-6...-5
%K nonn
%O 1,1
%A _R. H. Hardin_ Dec 11 2011
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