%I #7 Mar 30 2012 16:47:15
%S 1,1,1,1,-2,4,-3,2,-1,6,-7,9,-6,-2,1,11,-11,13,-14,2,4,12,-19,6,3,-4,
%T -2,22,-24,26,-23,3,6,-10,-1,31,-18,-6,-8,36,-34,36,-32,-5,17,24,-41,
%U 8,-4,7,-4,40,-44,2,-4,12,10,30,-54,56,-30,-24,1,5,-2,56
%N First differences of Kempner numbers A002034.
%K sign
%O 1,5
%A _N. J. A. Sloane_.