%I A136563
%S A136563 1,2,4,5,13,30
%V A136563 1,2,4,-5,13,-30
%N A136563 Leftmost column of triangle A136561.
%C A136563 Requiring that the absolute values of the differences in the difference 
               triangle only occur at most once each leads to the Zorach additive 
               triangle. (See A035312.) The leftmost column of the Zorach additive 
               triangle is A035311.
%H A136563 Leroy Quet, <a href="http://www.prism-of-spirals.net/">Home Page</a> 
               (listed in lieu of email address)
%Y A136563 Cf. A035311, A136561, A136562.
%Y A136563 Sequence in context: A079407 A078652 A102992 this_sequence A127077 A104549 
               A000063
%Y A136563 Adjacent sequences: A136560 A136561 A136562 this_sequence A136564 A136565 
               A136566
%K A136563 more,sign
%O A136563 1,2
%A A136563 Leroy Quet Jan 06 2008